(mainly after Wharton 2009). Hypopygium of ♀ enlarged, 0.3–0.5 times as long as length of metasoma, distinctly acute apically (Figs 13, 44, 65) and vein m-cu of fore wing 0.5–0.7 times vein 1-M (Figs 2, 14, 28, 55); pterostigma distinctly triangular (Figs 2, 55, 78, 90); scutellum slightly convex; second metasomal tergite strongly transverse, posterior width 4–7 times its median length (Fig. 5, but sometimes not separated from third tergite and nearby border only indicated by line of setae) and its anterior half usually without granulation, but sometimes distinct in P. cyclogaster (Fig. 17) and similar species; hypoclypeal depression wide and clypeus medium-sized (Fig. 19) or narrow (Figs 49, 71, 83, 95); precoxal sulcus impressed and usually crenulate medially; antenna of ♀ 1.1–1.7 times as long as fore wing; temple narrow (Figs 8, 32, 50, 96) or medium-sized (Figs 20, 84); vein m-cu of fore wing more or less antefurcal or interstitial (but more or less postfurcal in P. cyclogaster (Fig. 13) and similar species), gradually merging into vein 2-CU1 (Figs 28, 78) or angled with 2-CU1 (Figs 2, 13, 55, 90), straight or slightly (Fig. 2) to strongly curved; vein 1-CU1 of fore wing more or less widened (Figs 2, 28, 35, 66; but hardly so in P. cyclogaster (Fig. 13) and similar species); vein 2-SR+M of fore wing absent (Fig. 13) or present and more or less widened (Figs 2, 28, 55) or slender (Figs 55, 90); vein CU1b of fore wing present; second submarginal cell of fore rather elongate (Figs 2, 14); antero-medially pronotum at most with a transverse groove (Fig. 9) or with an shallow point-like pronope; mandible symmetrical, without extra protuberance (Fig. 86); medio-longitudinal carina of propodeum often present, but hardly so in P. cyclogaster (Fig. 17) and similar species); ovipositor sheath protruding far beyond apex of metasoma, its setose part usually 3–5 times as long as first metasomal tergite.

Parasitoids of larvae of Tephritidae; mainly in fruits, but sometimes in buds, flowers or galls (Wharton 2009).

Cosmopolitan, except Nearctic and Neotropical regions. Wharton (2009) excluded P. ovaliops (Fischer, 1980) and P. rufoflava Fischer, 2001 (the only species known from the New World) because they belong to different New World species groups.

Tobias and Jakimavičius (1986) synonymized Phlebosema Fischer, 1972 (as “Phelbosema”) with Psyttalia. This is not accepted here because the type species (Opius discreparius Fischer, 1963, from Japan) has a narrow elliptical pterostigma and the second metasomal tergite is granulate. Later Tobias included the type species in the subgenus Tolbia Cameron, 1907 (Tobias 1998). Both subgenera (Phlebosema and Tolbia) were synonymized with Phaedrotoma Foerster, 1863, by Li et al. (2013).

All known Psyttalia species from China have the setose part of ovipositor sheath about as long as the metasoma or slightly longer (= 3–5 times as long as first metasomal tergite). If the sheath is about twice as long as the metasoma, see the similar Phaedrotoma daghestanicum (Telenga, 1950) comb. n. that may occur in NW China. It is not included in Psyttalia, because the medio-posterior depression of the mesoscutum is present, vein CU1b of the fore wing is absent, the pterostigma is narrow, vein 1-CU1 of the fore wing is narrow, the precoxal sulcus is absent and the second metasomal tergite is as long as the third tergite (Fischer 1983). It is included in Phaedrotoma because it keys out there in the key by Li et al. (2013) and in the key below.

The genus Psyttalia Walker may be confused with Psyttoma van Achterberg & Li and some species of Phaedrotoma Foerster (Li et al. 2013), because of the acute hypopygium and far-protruding ovipositor. They can be separated as follows (for convenience Rhogadopsis is added because sometimes Rhogadopsis species are mistaken for Psyttalia).

Lectotype of O. carinatus here designated, ♀ (ZIL), “Broa” [= North Gottland, Sweden], 12–12.vii.[18]50”; 1 paralectotype, ♂ (ZIL) with same label data as lectotype; 1 paralectotype, ♂ (ZIL), “Gott”, “carinatus m. “, “O. carinatus Th.”. Paratypes of O. rhagoleticola: 3 ♀ (RMNH, ZJUH), “Cotypus”, “[Germany], Naumburg, 1932, aus Rhagoletis cerasi, Thiem”, “Opius rhagoleticolus Sachtl.” Holotype of Opius ophthalmicus ♀ (ZISP), “[Russia:], Primorskij kraj, okr. Ussurskiska, 13.ix.[1]968, Kandybina”, “Rhagoletis alternatum Flln., Kandybina det.”, “Litsinka v plodach zhipovnika Rosa”, “Holotypus Opius ophthalmicus Tobias”; 1 paratype, ♀ (ZISP), same data as holotype. Holotype of O. brevitemporalis, ♀ (ZISP), “[Russia:], Primorskij kraj, Spassk, 21.viii.1987, G. Belokobylskaja”, “Opius brevitemporalis sp. n., det. Tobias ‘95”, “Holotypus Opius brevitemporalis Tobias”; 1 paratype, ♀ (ZISP), “Primorskij kraj, zap. Kedrovaja Pad, 25.ix.[1]968, Kandybina”, “[ex] My[i]oleja sinensis Zia, Kandybina det.”, “[ex] Ch[a]etostoma continuans Zia & Chen”, “Litsinka v plodach shimolosti Lonicera maackii Rupr.”; “Paratypus Opius brevitemporalis Tobias”.

1 ♂ (ZISP), “[Russia], Ilmenskij zapoved, Tseljainskoj obl., 15.vii.[1]959, Tobias” (det. Tobias as O. carinatus); 3 ♀ (ZISP), id., but 18.vii.1958. Additional specimens (ZISP) of P. carinata with complete yellowish mesoscutum examined from Gravan, Bijsp, Altajskij kraj, Karagand. Obl., Toshska Obl. (Russia) and Kizhinev (Moldova).

Psyttalia carinata is a widespread Palaearctic species with the head distinctly narrower behind the eyes in dorsal view (eye 2.5–5 times longer than temple) and medium-sized ocelli (Fig. 8). This species is very similar to SW. Palaearctic and Afrotropical P. concolor (Szépligeti, 1910) as indicated by Fischer (1972); P. carinata differs by having mesosoma dorsally and the first metasomal tergite mainly or entirely black or dark brown (vs brownish or reddish yellow in P. concolor), vein cu-a of fore wing about as long as vein 1-CU1 (vs vein cu-a shorter than 1-CU1) and temple slightly less distinctly narrowed behind eyes (vs more directly narrowed) and by largely different spectrum of hosts belonging to Carpomya, Chetostoma, Myoleja and Rhagoletis species (vsAnastrepha, Bactrocera, Capparimyia, Carpomya, Ceratitis, Dacus, Euphranta, Rhagoletis and Synclera spp.).

Holotype of Opius brevitemporalis, ♀, length of body 2.8 mm, of fore wing 3.3 mm.

Head. Antenna with 40 segments, bristly and erect setose and 1.5 times as long as fore wing; third segment 1.2 times as long as fourth segment, length of third, fourth and penultimate segments 2.6, 2.2 and 2.3 times their width, respectively (Figs 6, 10); length of maxillary palp 0.9 times height of head; length of eye in dorsal view 4.2 times temple (Fig. 8); temple in dorsal view shiny, smooth and with sparse setae; OOL: diameter of ocellus: POL = 10:5:6; area behind stemmaticum reclivous and with minute pit (Fig. 8); face coarsely punctate with interspaces wider than diameter of punctures, shiny, with a smooth medio-longitudinal convexity widened ventrally (Fig. 7); frons slightly depressed behind antennal sockets and with some oblique striae; in front of anterior ocellus with slightly convex ridge, shiny, smooth and glabrous but laterally setose and punctulate (Fig. 8); labrum slightly depressed; clypeus transverse, sparsely punctate, convex, and its ventral margin truncate and narrow (Fig. 7); width of clypeus 4.3 times its maximum height and 0.7 times width of face; hypoclypeal depression wide and deep (Figs 7, 11); malar suture wide and shallow, punctate between malar suture and clypeus; mandible not twisted, apically moderately narrowed and with both teeth wide; mandible normal basally and with narrow ventral carina (Fig. 11); occipital carina remains far removed from hypostomal carina and dorsally largely absent; hypostomal carina narrow ventrally.

Mesosoma. Length of mesosoma 1.2 times its height; dorsal pronope minute, round; pronotal side largely smooth, but posterior groove dorsally crenulate (Fig. 3); propleuron slightly convex; epicnemial area smooth dorsally; precoxal sulcus medially medium-sized and only medially distinctly crenulate, absent anteriorly and posteriorly (Fig. 3); remainder of mesopleuron smooth and shiny; pleural sulcus smooth ventrally; mesosternal sulcus moderately deep, narrow and finely crenulate; postpectal carina absent; mesoscutum very shiny and glabrous (Fig. 4); notauli only anteriorly as pair of finely crenulate impressions and absent on disc; scutellar sulcus deep and with 6 short crenulae, parallel-sided medially; scutellum moderately convex and smooth, but apically sparsely punctate and setose (Fig. 4); metanotum with a protruding medio-longitudinal carina anteriorly and very finely crenulate posteriorly; surface of propodeum smooth and shiny except for rugose area near distinct and reversed Y-shaped median carina (Fig. 5), lateral grooves shallow and sparsely crenulate or smooth and anterior groove parallel-sided medially (Fig. 5).

Wings. Fore wing: 1-SR distinctly longer than wide and linear with 1-M (Fig. 2); pterostigma wide triangular (Fig. 2); 1-R1 ending at wing apex and 1.6 times as long as pterostigma (Fig. 2); r linear with 3-SR and medium-sized; r-m not tubular; r:3-SR:SR1 = 5:33:73; 2-SR:3-SR:r-m = 22:33:11; 1-M straight and SR1 curved; m-cu distinctly antefurcal and slightly curved, 2-M+CU1 moderately widened (as apex of M+CU1: Fig. 2) and 0.4 times as long as m-cu; cu-a distinctly postfurcal and 1-CU1 widened; 1-CU1:2-CU1= 5:23; first subdiscal cell closed; CU1b medium-sized; only apex of M+CU1 sclerotized. Hind wing: 1-M of hind wing straight, resulting in subparallel-sided cell apically; M+CU:1-M:1r-m = 5:5:4; cu-a straight; m-cu absent; SR slightly indicated apically.

Legs. Length of femur, tibia and basitarsus of hind leg 3.4, 8.0 and 4.4 times as long as width, respectively (Fig. 12); hind femur with rather long setae, tarsus and tibia densely setose.

Metasoma. Length of first tergite 1.2 times to its apical width, convex medio-posteriorly, its surface strongly and irregularly rugose-punctate (Fig. 5), dorsal carinae strong in its basal half and area below depressed; second suture slightly indicated; basal depressions of second tergite large and tergite 0.9 times as long as third tergite; second and following tergites smooth, shiny and sparsely setose; combined length of second and third metasomal tergites 0.25 times total length of metasoma; length of setose part of ovipositor sheath 0.52 times fore wing, 3.8 times first tergite, 2.4 times hind femur, 1.6 times hind tibia and 1.2 times metasoma; hypopygium about 0.5 times as long as metasoma, distinctly acute apically and about reaching apex of metasoma (Fig. 12).

Colour. Brownish yellow, but stemmaticum and area behind it, mesoscutum, metanotum, propodeum, first tergite and ovipositor sheath mainly black or blackish brown; antenna (except scapus and apically pedicellus), scutellum, pronotum and mesopleuron dorsally, second third tergites medially, fourth and fifth tergites (except lateral patch), sixth tergite medially, pterostigma and veins dark brown; remainder of sixth tergite yellowish; palpi, mandible (but teeth dark brown), tegulae and legs pale yellow; fore wing membrane subhyaline.

Male. Except for the sexual differences males are (as in other spp.) very similar to females; in general the size is less and more often than in females the metasomal tergites are darkened.

Variation. Length of fore wing 2.9–3.3 mm; antenna of ♀ with 35(1), 38(1), 39(1) and 40(1) segments, of ♂ 39(1); first tergite 1.1–1.2 times as long as its apical width; hind femur 3.4–4.2 times as long as wide; setose part of ovipositor sheath 0.50–0.54 times as long as fore wing, 0.8–1.1 times mesosoma and 1.5–1.7 times hind tibia; middle of mesoscutum black, chestnut brown or brown; area behind stemmaticum and scutellum dark brown to brownish yellow.

Variation of type series. The holotype of Psyttalia ophthalmica differs from typical P. carinata by having body partly dark brown and remainder yellowish brown, and scutellum with some setae and punctures posteriorly. These punctures are sometimes also present in typical P. carinata and both have been reared from Rhagoletis alternata (Fallén) (rose hip fly; Tephritidae). P. brevitemporalis has a similar scutellum (Fig. 4), but has the body largely dark brown dorsally and the holotype has the eye in dorsal view 4.2 (paratype 5.2) times as long as temple (4.2 times in holotype of P. ophthalmica, up to 3.8 times in P. carinata). According to Tobias (1998)P. carinata has the upper half of the mesopleuron granulate and P. rhagoleticola has it completely smooth, but clean specimens have always the mesopleuron smooth and shiny dorsally. The length of the temple in dorsal view seems to be variable. The W. Palaearctic specimens have the eye in dorsal view 2.5 times as long as temple (see fig. 267 in Fischer 1972) up to 3.8 times. In the East Palaearctic P. brevitemporalis and P. ophthalmica it varies between 4.2–5.2 times and because we could not find additional differences (except some variation in colour), we assume the variation is clinal. Therefore, we treat P. carinatasensu lato in this paper and synonymize both species under P. carinata.

Armenia; Austria; Bulgaria; Czech Republic; Finland; France; Germany; Hungary; Italy; Kazakhstan; Kyrgyzstan; Lithuania; Moldova; Netherlands (new record); Norway (id.); Poland; Russia (including Far East); Sweden; Switzerland; Uzbekistan and former Yugoslavia; introduced into Canada.

Endoparasitoid of Rhagoletis, Myoleja, Chetostoma and Carpomya species (Tephritidae) in fruits.

In ZJUH there is a similar female from S. China (Yunnan, Simao, 1982, Shiqing Yang, No. 826893) which most likely represents another new species. It has similar small ocelli and smooth frons, but the entirely mesoscutum is yellow, the base of the hind tibia is dark brown, the head is less transverse and vein m-cu of the fore wing is slightly longer than 2-SR+M (as in P. majocellata sp. n.). Differs from P. majocellata sp. n. by the largely dark brown second–fifth tergites of ♀ (vs yellow in ♀ of P. majocellata), the smaller ocelli, the dark brown middle of the pterostigma of ♀ and the less sculptured frons.

Lectotype of Opius cyclogaster here designated, ♀ (ZIL), “[France:] Delazy, [1872]”, “cyclogaster m., “O. cyclogaster Th.”. Holotype of O. proclivis, ♀ (TMAB), “Korea, prov. South Pyongan, Za-mo san, 60 km NE from Pyongyan, 2.ix.1971”, “No. 231, leg. S. Horvatovich et J. Papp”, “Holotypus ♀ % Opius (Lissosema) proclivis sp. n., Papp J., 1981”, “Hym. Typ. No. 2841, Museum Budapest”, “Rhogadopsis ♀ proclivis Papp, det. Papp J., 2012”. Holotype of O. subcyclogaster, ♀ (ZISP), “[Russia:], Zabajkalsk, Tsitin., step, 1.vii.[1]975, Kasparjan”, “Opius subcyclogaster sp. n., Tobias det. 1998”, “Holotypus Opius subcyclogaster Tobias”. Holotype of O. darasunicus, ♀ (ZISP), “[Russia:], 9 km S Kurorta, Darasun, Tsit. Obl., 27.vi.[1]975, Kasparjan”, “Opius darasunicus sp. n., Tobias det. 1998”, “Holotypus Opius darasunicus Tobias”. Holotype of O. cyclogastroides, ♀ (ZISP), “[Russia:], Primorskij kraj, 20 km YuV Ussurijska, na svet, 18-21.vii.1996, S. Belokobylskij”, “Opius cyclogastroides sp. n., Tobias det. 1998”, “Holotypus Opius cyclogastroides Tobias”; 1 paratype, ♀ (ZISP), “[Russia:], Primorskij kraj, 10 km YuYuZ Partizanska, les, opushki, 12–13.vii.1996, S. Belokobylskij”, “Paratypus Opius cyclogastroides Tobias”. Holotype of R. longicaudifera, ♀ (ZJUH), “S. China: Hunan, Yongzhou, Jiangyong, Yuankou, 28.v.1988, Jian-Ping Liu, No. 181”.

1 ♀ (ZISP), “[Japan: Kyushu], Miyazaki, Yatake, 700 m, Shiiba-mura, 21.vii.1992, V. Makarkin”; 1 ♀ (ZISP), “[Russia:], 9 km S Kurorta, Darasun, Tsit. Obl., 27.vi.[1]975, Kasparjan” (under O. subcyclogaster); 1 ♀ (ZISP), “[Russia:], Primorskij kraj, 20 km YuV Ussurijska, les, 5.viii. 1991, Belokobylskij”; 1 ♀ (ZISP), id., but nzap. “Kedrovaja Pad”, dubnjak, 22.vii.1979; 1 ♂ (ZISP), id., but Baradash-Levada, 2.ix.1978; 1 ♀ (ZISP), id., but Anisimovka, poljan, 12.vii.1984; 1 ♀ (ZISP), “[Russia:] Ilmenskij Zapoved, Tseljabinskoj obl., 17.vii.1950, Tobias”; 1 ♀ (ZISP), “Kazachst[an], Janvartsevo, prav., b. Urala, 31.viii.[1]949, Rubolph”; 1 ♀ (NWUX), “NW. China: Shaanxi, Xunyangba, Ningshan, c. 1300 m, 2.vi.2014, 33°33’N 108°32’E, Jiangli Tan, NWUX”; 1 ♀ (ZJUH), “[NE. China:] Liaoning, Shenyang, Dongling, 6.v.1994, Juxian Lou, No. 947532”; 2 ♀ (ZJUH), “[NE. China:] Jilin, Changbai Mts, 4.vii.1994, Juxuan Lou, Nos 951911 and 952014”; 2 ♀ (ZJUH), “[N. China:] Henan, Neixiang, Baotianman, 13 & 15.vii.1998 Yun Ma, Nos 986161 and 986801”; 1 ♀ (ZJUH), “[N. China:] Henan, Jigong Mts, 11.vii.1997, Xuexin Chen, No. 973737”; 2 ♀ (ZJUH), “[N. China:] Hebei, Xiaowutai Mts, Yangjiaping, 20.viii.2005, Min Shi, Hongying Zhang, Nos 200604624 and 200604804”; 1 ♀(ZJUH), “[SE. China]: Fujian, Chongan, Wuyi Mts, 5–10.vii.1989, Junhua He, No. 894760”; 1 ♀ (ZJUH), id., but 6.viii.1986, Jiashe Wang, No. 865476”; 2 ♀ (ZJUH), “[SE. China:] Fujian, Dehua, Daiyun Mts, 13 and 14.iv.2002, Yiping Wang, No. 20024716 and Jingxian Liu, No. 20024977”; 1 ♀ (ZJUH), “[SE. China:] Fujian, Dehua, Chishuizhen, 13.iv.2002, Zaifu Xu, No. 20025208”; 1 ♂ (ZJUH), “[SE. China:] Fujian, Liancheng, Tiaoxi, 18.viii.1988, Jian Huang, No. 20005629”; 2 ♂ (ZJUH), id., but Luochi, 23.viii.1988, Jian Huang, Nos 20005501 and 20005521”; 2 ♂ (ZJUH), “[SE. China:] Fujian, Nanping, Xiqinzhen, 21.ix.2002, Fangfang Li, Nos 20025524 and 20025551”; 1 ♀ 2 ♂ (ZJUH), “[SE. China:] Fujian, Shaxian, 15.ix.1980, Junhua He, No. 803805”; 1 ♀ 1 ♂ (ZJUH), id., but Yangfang, 1.vii.1981, Naiquan Lin, Nos 20044078 and 20044080”; 2 ♀ (ZJUH), “[SE. China:] Fujian, vi.1989, Zhishan Wu, Nos. 20009819 and 20009830”; 1 ♂ (ZJUH), “[SE. China:] Fujian, Yongan, Tianbaoyan, 15–18.vii.2001, Zaifu Xu, No. 20020238”; 5 ♀ (ZJUH), “[SE. China:] Fujian, Youxi, 15.v.1988, Qi Zheng, Nos 20005097, 20005106, 20005107, 20005122 and 20005148”; 2 ♀ (ZJUH), id., but Meixian, 15.x.1988, Changfu Lin, Nos 20005106 and 20005231”; 1 ♀ (ZJUH), “[S. China:] Guangdong, Fengkai, Heishiding, 15.viii.2003, Jujian Chen, No. 20048957”; 1 ♂ (ZJUH), “[S. China:] Guangdong, Guangzhou, 1.xi.1989, Junhua He, No. 896617”; 1 ♀ (ZJUH), “[S. China:] Guangdong, Huizhou, Xiangtou Mts, 11.v.2004, Zaifu Xu, No. 20053407”; 2 ♀ (ZJUH), “[S. China:] Guangdong, Yunan, Tongle Mts, 12–13.viii.2003, Zaifu Xu, Nos 20054397 and 20054613”; 3 ♀ 5 ♂ (ZJUH), “[S. China:] Guangdong, Yangchun, Baishui Waterfalls, 1.v.2002, Zaifu Xu, Nos 20028327, 20028352, 20028353, 20028371, 20028372, 20028383, 20028385 and 20028395”; 4 ♀ (ZJUH), id., but Baiyong, 5–6.v. 2002, Zaifu Xu, Nos 20028016, 20028022, 20028044 and 20028060; 2 ♀ (ZJUH), id., but Huatan, 34.v.2002, Zaifu Xu, Nos 20027570 and 20027811; 5 ♀ 1 ♂ (ZJUH), “[S. China:] Guangdong, Yangchun, Efengling Mts, 2.v.2002, Zaifu Xu, Nos 20028199, 20028221, 20028237, 20028238, 20028254 and 20028265”; 4 ♀ 1 ♂ (ZJUH), “[S. China:] Guangdong, Heyuan, Gui Mts, 18.v.2002, Zaifu Xu, Nos 20028572, 20028637, 20028657, 20028686 and 20028706”; 3 ♀ (ZJUH), “[S. China:] Guangdong, Shixing, Chebaling Mts, 21.viii.2003, Zaifu Xu, Nos 20051956, 20052375 and 20052443”; 3 ♀ (IZAS, RMNH) “[S. China:] Hainan, Tongshi, 340 m”, “3.iv.1960, Suofu Li”, “IOZ(E) 61743638”; 5 ♀ 1 ♂ (ZJUH), “[S. China:] Hainan, Yinggeling Mts, 18.x. 2007 and 24–25.v.2007, Jingxian Liu, Nos 200702620, 200702639, 200702754, 200702774, 200209739 and 200209997”; 1 ♀ (ZJUH), id., but Hongmao, 23–25.v.2007, Jie Zeng, No. 200804464; 1 ♀ (ZJUH), id., but 28.v.2007, Liqiong Weng, No. 200804194; 3 ♀ (ZJUH), “[S. China:] Hainan, Diaoluo Mts, 1–2.vi.2007 and 16–17.vii.2007, Jingxian Liu, Nos 200703899, 200703929 and 200802336”; 1 ♀ (ZJUH), “[S. China:] Hainan, Jianfengling Mts, 9–14.v.2007, Kuiyan Zhang, No. 200703651”; 4 ♀ (ZJUH), “[S. China:] Hainan, Wuzhi Mts, Shuimanxiang, 15–20.v.2007, Liqiong Weng, Nos 200803746, 200803755, 200803954 and 200803994”; 10 ♀ 7 ♂ (ZJUH), id., but 16–20.v.2007, 29.x.2007, Jingxian Liu, Nos 200703180, 200703261, 200703298, 200703385, 200710037, 200710040, 200710056, 200710091, 200710095, 200710114, 200710121, 200710129, 200710204, 200710205, 200710212, 200710282, 200710289 and 200710328”; 6 ♀ (ZJUH), id., but Shuimanxiong, 17–20.v.2007, Bin Xiao, Nos 200804666, 200804786, 200804793, 200804796, 200804814 and 200804857”; 1 ♀ (ZJUH), “[SW. China:] Guangxi, Fangcheng, Banba, 8.vi.2000, Hong Wu, No. 200100263”; 1 ♂ (ZJUH), “[SW. China:] Guangxi, Beiliu, 26.ix.1980, Youfu Zhong, No. 824470”; 1 ♂ (ZJUH), “[SW. China:] Guangxi, Daming Mts, Neichao,12.viii.2011, Chengjin Yan, No. 201100571”; 1 ♂ (ZJUH), “[SW. China:] Guangxi, Napo, Guinong Mts, 21.vi.2000, Hong Wu, No. 200100150”; 1 ♂ (ZJUH), “[SW. China:] Guangxi, Tianlin, Anjiaping, 29.v.1982, Junhua He, No. 821867”; 3 ♀ (ZJUH), “[SW. China:] Guangxi Botanical Garden, 30.x.2002, Naiquan Lin, Nos 20034981, 20034996 and 20035021”; 1 ♀ (ZJUH), “[SW. China:] Sichuan, Jiuzhaigou, 16.vii.1987, Gang Chen, No. 200012336”; 1 ♀ (ZJUH), “[SW. China:] Yunnan, Jinghong, 9.iv.1981, Junhua He, Nos 711675 and 811752”; 2 ♂ (ZJUH), “[SW. China:] Yunnan, Lancang, 20.iv.1981, Junhua He, Nos 814341 and 814358”; 1 ♂ (ZJUH), “[SW. China:] Yunnan, Mangshi, 9.v.1981, Junhua He, No. 813202”; 1 ♀ (ZJUH), “[SW. China:] Yunnan, Menghai, 17.iv.1981, Junhua He, No.811752”; 1 ♀ (ZJUH), “[SW. China:] Yunnan, Ruili, 4.v.1981, Junhua He, No. 815069”; 2 ♂ (ZJUH), id., but Mengxiu, 2–6.v.1981, Junhua He, Nos 813152 and 814057”; 2 ♀ (ZJUH), “[SW. China:] Yunnan, Tengchong, Jietouxiang, 11–12.vii.2006, Jie Zeng, Nos 20081636 and 20081839”; 1 ♀ (ZJUH), “[SW. China:] Yunnan, Youle Mts, 11.iv.1981, Junhua He, No. 811923”; 2 ♀ (ZJUH), “[SW. China:] Yunnan, Yuanjiang, 4.iv.1981, Junhua He, Nos 811414 and 811428”; 1 ♀ (ZJUH), “[E. China:] Zhejiang, Anji, Longwang Mts, 31.viii.1993, Xuexin Chen, No. 939738”; 1 ♀ (ZJUH), id., but 28.vii.1996, Hong Wu, No. 970389”; 1 ♀ (ZJUH), “[E. China:] Zhejiang, Gutian Mts, 1.viii.1990, Yun Ma, No. 906143”; 1 ♀ (ZJUH), “[E. China:] Zhejiang, Lin’an, Qingliangfeng Mts, 9.viii.2005, Hongying Zhang, No. 200607118”; 1 ♀ (ZJUH), “[E. China:] Zhejiang, Longquan, Fengyang Mts, 22–24.vii.1982, Qisheng Song, No. 826576”; 1 ♀ (ZJUH), “[E. China:] Zhejiang, Tianmu Mts, 21.vii.1987, Xuexin Chen, No.873064”; 1 ♀ (ZJUH), id., but 18.vi.1983, Yun Ma, No.831156; 2 ♀ (ZJUH), id., but Zuhua Shi, Nos 830471 and 830473; 1 ♀ 1 ♂ (ZJUH), id., but Junhua He, Nos 830703 and 830708; 1 ♀ (ZJUH), id., but 11.vi.1993, Yun Ma, No. 934354; 1 ♀ (ZJUH), id., but 20.vii.1987, Xuexin Chen, No. 872088; 2 ♀ (ZJUH), id., but 4.vi.1994, Xuexin Chen, Nos 941900 and 941912; 5 ♀ (ZJUH), id., but 1.vii.2000, Xuexin Chen, Nos 20032047, 20032048, 20032050, 20032059 and 20032079; 1 ♀ (ZJUH), id., but Chanyuan Temple, 16.v.1988, Xuexin Chen, No. 882029; 1 ♀ (ZJUH), id., but Xiaoming Lou, No. 883224; 5 ♀ (ZJUH), id., but 31.v.1998, Xuexin Chen, Nos 980067, 980149, 980158, 980504 and 980520; 1 ♀ (ZJUH), id. but Jinjing Fan, No. 884351; 2 ♀ 1 ♂ (ZJUH), id., but Laodian-Xianrending, 17–18.v.1988, Xuexin Chen, Nos 884383, 882587 and 891615; 1 ♀ (ZJUH), id., but Laodian, 13.vi.1998, Xuexin Chen, No. 980685; 2 ♀ (ZJUH), id., but Mingshui Zhao, Nos 20000806 and 20002334; 1 ♀ (ZJUH), id., but Sanmuping, 30.vii.1998, Mingshui Zhao, No. 999219; 1 ♀ (ZJUH), id., but Xianrending, 2–4.vi.1990, Yonggen Lou, No. 900124; 1 ♀ (ZJUH), id., but 3.vii.2000, Weidi Li, No. 200104179.

As aptly indicated by its name the female lectotype of P. cyclogaster has the metasoma nearly circular because of the strongly transverse second and third tergites. Best to recognise by the scutellar subapical prominence, more or less developed smooth bump in front of anterior ocellus and pit behind stemmaticum, the laterally distinctly setose scutellum and the more or less distinctly micro-sculptured medio-posterior area of scutellum. According to the key by Fischer (1972) closely related to P. nilotica (Schmiedeknecht, 1900) from Egypt and Israel. However, the given differences (propodeum with bifurcate carina in P. cyclogaster and without in P. nilotica, and head mesosoma and base of metasoma mainly black in P. cyclogaster and reddish yellow in P. nilotica) are variable in the specimens examined and the possibility that P. nilotica is a pale southern form of P. cyclogaster should be considered. According to Fischer (1972, 1987) P. nilotica should have the precoxal sulcus narrow and the sulcus remains removed from the anterior border of the mesopleuron; this may allow a separation. In the key by Fischer (1987)P. cyclogaster runs to two S. African species: P. vittator (Brues, 1926) if bifurcate carina of propodeum is well developed and P. prothoracalis (Fischer, 1972) if carina is weakly developed or absent. Both species have the eye 1.5–1.6 times as long as temple in dorsal view (vs 2.5–5 times in P. cyclogaster) and, additionally, P. prothoracalis differs from both other species by the narrow, finely crenulate and long sinuate precoxal sulcus (vs medially wide, shorter and coarsely crenulate sulcus).

Redescribed ♀ from Shaanxi (Ningshan), length of body 3.9 mm, of fore wing 4.2 mm.

Head. Antenna with 36 segments and 1.1 times as long as fore wing; third segment as long as fourth segment, length of third, fourth and penultimate segments 3.3, 3.2 and 1.3 times their width, respectively (Figs 18, 23); length of maxillary palp 1.1 times height of head; length of eye in dorsal view 1.6 times temple (Fig. 20); temple in dorsal view shiny, smooth and with sparse setae; OOL: diameter of ocellus: POL = 18:7:10; area behind stemmaticum with a round depression and in front of anterior ocellus with a bump (Fig. 8); face largely smooth, with satin sheen and sparsely punctulate with a medio-longitudinal convexity dorsally and widened ventrally (Fig. 19); frons depressed behind antennal sockets, slightly shiny, glabrous and crenulate (Fig. 20); labrum depressed; clypeus nearly trapezoid, flat, and its ventral margin nearly straight and thin (Fig. 19); width of clypeus 1.9 times its maximum height and 0.4 times width of face; hypoclypeal depression wide and deep (Figs 19, 24); malar suture present, punctate between malar suture and clypeus (Fig. 24); mandible somewhat twisted and narrowed apically and normal basally, with narrow ventral carina (Fig. 24); occipital carina widely removed from hypostomal carina and dorsally absent; hypostomal carina narrow.

Mesosoma. Length of mesosoma 1.2 times its height; dorsal pronope absent (Fig. 20); pronotal side largely smooth, but anterior and posterior grooves present and coarsely crenulate (Fig. 15); epicnemial area crenulate dorsally; precoxal sulcus medially wide and coarsely crenulate, complete (Fig. 15); remainder of mesopleuron sparsely and finely punctate; pleural sulcus finely crenulate ventrally; mesosternal sulcus shallow and crenulate; postpectal carina absent; mesoscutum very shiny and glabrous (Fig. 16); notauli only anteriorly as pair of nearly smooth impressions and absent on disc; scutellar sulcus deep and with short crenulae, widened medially; scutellum distinctly convex and smooth, but medio-posteriorly longitudinally rugulose (Fig. 17); metanotum with a short longitudinal carina medially; surface of propodeum coarsely rugose and without an obvious medio-longitudinal carina (but bifurcate carina slightly indicated; Fig. 17) and anterior groove somewhat widened medially (Fig. 16).

Wings. Fore wing: 1-SR distinctly longer than wide and linear with 1-M (Fig. 14); pterostigma elongate triangular (Fig. 14); 1-R1 ending before wing apex and 1.5 times as long as pterostigma (Fig. 14); r long; r-m not tubular; r:3-SR:SR1 = 5:18:38; 2-SR:3-SR:r-m = 2:3:1; 1-M slightly curved near pterostigma and SR1 more or less straight; m-cu distinctly postfurcal and slightly curved; cu-a distinctly postfurcal and 1-CU1 widened; 1-CU1:2-CU1= 5:11; first subdiscal cell closed; CU1b short; only apex of M+CU1 sclerotized. Hind wing: 1-M straight; M+CU:1-M:1r-m = 14:13:10; cu-a straight; m-cu absent.

Legs. Length of femur, tibia and basitarsus of hind leg 4.2, 8.8 and 4.5 times as long as width, respectively (Fig. 25); hind femur and tibia with long setae.

Metasoma. Length of first tergite equal to its apical width, rather flat, its surface strongly and densely punctate-rugose (Fig. 17); second suture slightly indicated; second and following tergites smooth (except some superficial granulation), shiny and sparsely setose; combined length of second and third metasomal tergites 0.3 times total length of metasoma; length of setose part of ovipositor sheath 0.47 times fore wing, 3.5 times first tergite and 1.5 times hind tibia; hypopygium about 0.5 times as long as metasoma and distinctly acute apically (Fig. 26).

Colour. Black; head (including mandible) and propleuron yellowish brown, but teeth of mandible, stemmaticum and back of head dorsally black; scapus ventrally and tegula brown; pronotum ventrally, mesopleuron posteriorly and antero-dorsally, and metapleuron brown; palpi infuscate; humeral plate and legs yellowish, but tarsi brown; pterostigma and veins dark brown; laterally hypopygium brown and medially dark brown; fore wing membrane slightly infuscate.

Variation. Length of fore wing 2.4–4.2 mm; antenna of ♀ with 26(1), 28(1), 29(3), 34(1), 36(1), 37(1) and 38(1) segments; frons sculptured to often entirely smooth; hind femur 3.5–4.2 times as long as wide; first tergite 1.0–1.2 times as long as wide apically; setose part of ovipositor sheath 0.43–0.57 times as long as fore wing and 1.3–1.8 times hind tibia; second tergite entirely shiny granulate to (often entirely) smooth; head mainly black (except orbita) to nearly entirely orange or yellowish brown (except posteriorly), mesoscutum and mesopleuron largely black to entirely orange or yellowish brown; metasoma black to dark brown, sometimes first and second tergites brownish yellow or first tergite brown and second yellow or dark brown.

Variation of types series. The synonymy of Coeloreuteus formosanus Watanabe is based on photos of its holotype kindly supplied by Andrew Liston (SDEI); it is a pale specimen (with the head and the mesosoma mainly yellowish brown and the hind femur about 3.5 times as long as wide) having all the characteristics of P. cyclogaster as listed in the key. The only differences concern the paler head and mesosoma, smooth scutellum posteriorly and the more retracted (but equally long) hypopygium; these are considered insufficient for retaining it as valid species (both colour and sculpture are too variable in this species). Rhogadopsis longicaudifera Li & van Achterberg belongs also to this extreme form and is, therefore, also synonymized. P. proclivis (Papp) has first tergite of holotype only 1.1 times longer than its apical width (not 1.4 or 1.5 times as indicated by Papp (1981), Fischer (1989) and Tobias (1998)) and fits the diagnosis despite having the first tergite rather smooth. It shares this with P. subcyclogaster (Tobias) and both are rather small (length of body 2.0–2.7 mm and antenna with 28–29 segments). The holotype of P. darasunica (Tobias) differs mainly by the mainly black head and mesosoma, its rather small size, and having 29 antennal segments. In P. cyclogastroides (Tobias) the head and the mesosoma are partly brownish, the type specimens are larger and have 39 antennal segments. Finally, P. extensa Weng & Chen shares the micro-sculptured and setose medio-posterior area of scutellum (fig. 242 in Weng and Chen 2005), the frontal protuberance and the flattened medium-sized clypeus (Fig. 241, l.c.). The reported basally widened mandible is actually normal as shown on photographs of the holotype taken by Min-Lin Zheng (Fuzhou); it has only a ventro-basal carina.

France, Kazakhstan, Russia Far East (as cyclogastroides, darasunicus and subcyclogaster) Korea (as proclivis), China (Fujian (as extensa), *Guangdong, *Guangxi, *Hainan, *Henan, *Hebei, Hunan (as longicaudifera), Jilin (as extensa), *Liaoning, *Shaanxi, *Sichuan, Taiwan, *Yunnan, *Zhejiang), Japan (new record).

Unknown.

Psyttalia fletcheri shares with the very similar P. makii and P. incisi the long vein r of fore wing (Fig. 28), the short temple (Fig. 32), vein 2-SR+M of fore wing distinctly widened (Fig. 28) and the antenna largely brownish yellow. Differs from P. incisi by the short vein 2-SR+M of fore wing (about twice as long as wide vs 3.5–4.0 times in P. incisi) and the strongly curved vein m-cu of fore wing (vs weakly curved or straight in P. incisi). Very similar to P. makii, but P. fletcheri has vein r of fore wing about as long as vein 2-SR (vs about 0.8 times vein 2-SR in P. makii) and vein 1-CU1 of fore wing at most 0.7 times as long as vein cu-a (vs about of equal length in P. makii).

Australia (Queensland), India, Indonesia, Malaysia, Réunion, Sri Lanka and Thailand. Introduced in Brazil, China (Taiwan), Fiji, Guam, Japan (Ryukyu Isl.), Philippines, Puerto Rico and U.S.A. (Hawaii, Florida).

Parasitoid of Tephritidae: probably only of Dacus spp.; other reported hosts may be based on incorrect identification of the parasitoid (confusion with P. incisi) and/or host-relationship (Wharton and Gilstrap 1983). The male of P. fletcheri reported from mainland China (Guangdong) by Yao et al. (2008) reared from Bactrocera dorsalis (Hendel) is obviously misidentified. It is a species near P. majocellata sp. n., but differs by the short and widened vein 1-SR of the fore wing, the wider first subdiscal cell of fore wing, the dark brown pterostigma and the less sculptured frons.

4 ♀ 4 ♂ (RMNH, ZJUH), “S. China: Fujian, Fuzhou, reared in lab for release, 6.vi.2012, C. v. Achterberg, RMNH’12, Psyttalia incisi (Silvestri)”. The released reared specimens originate from locally collected stock (Ji et al. 2004).

Psyttalia incisi shares with the very similar P. makii and P. fletcheri the long vein r of fore wing (Fig. 28) and the short temple (Fig. 32). Psyttalia incisi can be separated by having vein 2-SR+M of fore wing 3.5–4.0 times as long as wide (Fig. 28; vs about twice as long as wide in P. makii and P. fletcheri) and vein m-cu of fore wing weakly curved or straight (vs strongly curved in P. makii and P. fletcheri).

China (Fujian), India, Malaysia, Thailand, Philippines (Luzon). Introduced in U.S.A. (Hawaii, Florida), Mexico, Fiji, Guam and Australia (New South Wales, Queensland, Western Australia) (Yu et al. 2012).

Parasitoid of Tephritidae: Carpomyia vesuvuana Costa, Bactrocera carambolae Drew & Hancock, B. correcta (Bezzi), B. cucurbitae (Coquillet), B. dorsalis (Hendel), B. incisa (Walker), B. latifrons (Hendel), B. papayae Drew & Hancock, B. tuberculata (Bezzi), Ceratitis capitata (Wiedemann) and Dacus ciliatus Loew.

The series reared in the lab has either the basal half of pterostigma entirely dark brown and similar to its apical half (Fig. 28; males) or its basal half is yellow and contrasting with its dark brown apical half (females). The latter is considered to be typical (Wharton and Gilstrap 1983) but can be used only for females.

Holotype, ♂ (ZJUH), “[S. China:] Hainan, Bawangling Mts, 24–25.v.2007, Jingxian Liu, No. 200702714”.

Easily recognizable species, because of the unique long, widened and slightly curved vein 1-CU1 of the fore wing (Fig. 35) in combination with the largely unsclerotized vein 1-SR+M, the widened but short vein 2-SR+M, and parallel veins m-cu and 1-M of the fore wing (Fig. 35).

Holotype, ♂, length of body 3.5 mm, of fore wing 2.8 mm.

Head. Antenna with 43 segments, bristly and rather adpressed setose and 1.7 times as long as fore wing; third segment 1.4 times as long as fourth segment, length of third, fourth and penultimate segments 3.0, 2.2 and 1.8 times their width, respectively (Fig. 43); length of maxillary palp 0.9 times height of head; length of eye in dorsal view 3.2 times temple (Fig. 40); temple shiny, smooth except for some punctures posteriorly and with sparse setae; OOL: diameter of ocellus: POL = 45:22:30; area behind stemmaticum reclivous (Fig. 40); face coarsely punctate with interspaces about equal to diameter of punctures and with satin sheen (Fig. 39); frons slightly depressed behind antennal sockets and in front of anterior ocellus, shiny, smooth and glabrous but laterally setose and punctulate (Fig. 40); labrum nearly flat; clypeus transverse, convex, and its ventral margin truncate and thin (Fig. 39); width of clypeus 3.5 times its maximum height and 0.8 times width of face; hypoclypeal depression wide and deep (Figs 39, 41); malar suture largely absent; malar space 0.4 times longer than basal width of mandible and area micro-sculptured (Fig. 41); mandible not twisted, apically moderately narrowed and with both teeth wide, normal basally and with narrow ventral carina (Fig. 41); occipital carina remains far removed from hypostomal carina and dorsally largely absent; hypostomal carina medium-sized ventrally.

Mesosoma. Length of mesosoma 1.2 times its height; pronope absent, only with groove; pronotal side largely smooth, but anterior and posterior grooves present and posteriorly with some crenulae (Fig. 36); propleuron flattened; epicnemial area smooth dorsally; precoxal sulcus only medially present and moderately crenulate (Fig. 36); remainder of mesopleuron smooth and shiny; pleural sulcus smooth ventrally; mesosternal sulcus shallow, narrow and finely crenulate; postpectal carina absent; mesoscutum very shiny and nearly entirely glabrous (Fig. 37); notauli only anteriorly as pair of partly finely crenulate impressions and absent on disc; scutellar sulcus deep and with 7 short crenulae, parallel-sided medially; scutellum slightly convex and smooth, only laterally sparsely setose (Fig. 37); metanotum with short longitudinal carina antero-medially and short carina posteriorly (Figs 37–38); surface of propodeum smooth, except for crenulae near reversed Y-shaped median carina and with short lateral crenulate groove above spiracle (Figs 37–38).

Wings. Fore wing: 1-SR as long as wide and linear with 1-M; pterostigma triangular and r not linear with postero-basal border (Fig. 34); 1-R1 ending at wing apex and 1.7 times as long as pterostigma; r linear with 3-SR and medium-sized; r-m and most of 1-SR+M unsclerotized; r:3-SR:SR1 = 5:29:56; 2-SR:3-SR:r-m = 15:29:7; 1-M straight and SR1 slightly curved; m-cu narrowly antefurcal and slightly curved, subparallel with 1-M (Fig. 35); 2-SR+M short and widened; cu-a short, vertical and far postfurcal; 1-CU1 curved and widened; 1-CU1:2-CU1= 15:24; first subdiscal cell widened apically and closed, CU1b medium-sized; only apex of M+CU1 sclerotized. Hind wing: 2-M slightly sinuate; M+CU:1-M:1r-m = 20:21:10; cu-a straight; m-cu and SR absent.

Legs. Length of femur, tibia and basitarsus of hind leg 4.2, 7.8 and 4.2 times as long as width, respectively (Fig. 42); hind femur with long setae.

Metasoma. Length of first tergite 1.4 times its apical width, convex medio-posteriorly, its surface largely smooth except some sculpture subposteriorly (Fig. 38), dorsal carinae strong in basal half of tergite and with depressed area below; second suture not indicated; basal depressions of second tergite deep and elliptical; second tergite 0.7 times as long as third tergite; second and following tergites smooth, shiny and sparsely setose; combined length of second and third metasomal tergites 0.35 times total length of metasoma.

Colour. Ivory or white; head dorsally (but stemmaticum black), scapus, pedicellus, V-shaped patch on mesoscutum, mesoscutum laterally, tegulae, scutellum largely and apical margin of third–seventh tergites yellow; remainder of antenna brown with apices of segments dark brown; scutellum posteriorly, metanotum and propodeum brownish; remainder of mesoscutum and of second–seventh tergites dorsally, pterostigma and veins dark brown; wing membrane subhyaline.

China (Hainan).

Unknown.

From “latus” (Latin for “wide”) and “nervus” (Latin for “nerve, vein”) because of the widened vein 1-CU1 of the fore wing.

Holotype, ♀ (ZJUH), “[S. China:] Hainan, Bawangling Mts, 28.v.3.vi. 2007, Liqiong Weng, No. 200804217”. Paratypes (2 ♀ 2 ♂): 1 ♀ 2 ♂ (ZJUH, RMNH), id., but 9–10.vi.2007, Jingxian Liu, Nos 200703438, 200703465 and 201503525; 1 ♀ (ZJUH), “[SW. China:] Guizhou, Mayanghe river, 1–3.x.2007, Jingxian Liu, No. 200709564”.

The new species runs in the key to the subgenus Psyttalia by Fischer (1987) to the Oriental P. walkeri (Muesebeck, 1931). The new species differs by having a short median carina on the propodeum, bifurcated medially and posterior half of propodeum with crenulae (Fig. 48; vs median carina long, bifurcated apically and posteriorly smooth in P. walkeri), POL equal to diameter of posterior ocellus (vs smaller), face and mesosoma similarly yellow (Fig. 46; vs face pale yellow, different from reddish yellow mesosoma), second tergite smooth (vs superficially granulate) and first tergite slightly longer than wide apically (Fig. 48; vs about 1.3 times). The new species can be easily confused with pale P. carinata (Thomson). The new species differs by having larger ocelli (OOL 1.2–1.7 times diameter of posterior ocellus and POL 0.8–1.0 times diameter of ocellus (Fig. 50) vs OOL 2.0–2.4 times diameter of posterior ocellus and POL slightly longer than diameter of ocellus in P. carinata (Fig. 8)), frons and vertex laterally punctate (vs largely smooth), vein 2-SR+M of fore wing 0.6–0.8 times as long as vein m-cu (vs about 0.4 times), second tergite half as long as third tergite (vs 0.8-0.9 times), first discal cell more transverse (vs transverse), base of hind tibia dark brown (vs brownish yellow) and distributed N. Oriental (vs Palaearctic). See note under P. carinata about a similar species from S. China.

Holotype, ♀, length of body 3.3 mm, of fore wing 3.2 mm.

Head. Antenna with 40+ segments (apical segments missing), bristly and rather erect setose and at least 1.3 times as long as fore wing; third segment 1.2 times as long as fourth segment, length of third and fourth penultimate segments 3.2 and 2.6 times their width, respectively (Fig. 44); maxillary palp 1.1 times as long as height of head; length of eye in dorsal view 3.9 times temple (Fig. 50); temple shiny, smooth except for some punctulation posteriorly and with sparse setae; OOL: diameter of ocellus: POL = 22:13:13; area behind stemmaticum reclivous (Fig. 50); face coarsely punctate with interspaces about equal to diameter of punctures and with satin sheen (Fig. 49); frons slightly depressed behind antennal sockets and with triangular depression between antennal sockets, shiny, smooth and glabrous but laterally (as vertex) setose and punctate (Fig. 50); labrum nearly flat; clypeus transverse, convex, punctate and its ventral margin truncate and thin (Fig. 49); width of clypeus 2.7 times its maximum height and 0.7 times width of face; hypoclypeal depression wide and deep (Fig. 49); malar suture largely absent; malar space 0.4 times longer than basal width of mandible and punctate; mandible not twisted, apically moderately narrowed and with both teeth wide, normal basally and with narrow ventral carina; occipital carina remains far removed from hypostomal carina and dorsally absent; hypostomal carina medium-sized ventrally.

Mesosoma. Length of mesosoma 1.4 times its height; pronope absent and only with groove; pronotal side largely smooth, but anterior and posterior grooves present, anteriorly and posteriorly with some crenulae (Fig. 46); propleuron flattened; epicnemial area smooth dorsally; precoxal sulcus moderately punctate-crenulate, absent posteriorly and nearly complete anteriorly (Fig. 46); remainder of mesopleuron smooth (except for band of fine punctures medially) and shiny; pleural sulcus smooth ventrally; mesosternal sulcus medium-sized and moderately crenulate; postpectal carina absent; mesoscutum very shiny and nearly entirely glabrous (Fig. 47); notauli only anteriorly as pair of partly finely crenulate impressions and absent on disc; scutellar sulcus deep and with 4 short crenulae, parallel-sided medially; scutellum slightly convex and smooth, only laterally sparsely setose (Fig. 47); metanotum with short longitudinal carina antero-medially and finely crenulate posteriorly (Fig. 47); surface of propodeum smooth, except for crenulae near reversed Y-shaped median carina (median carina part rather short), distinctly depressed posteriorly near triangular areola and with lateral crenulate groove above spiracle (Fig. 48).

Wings. Fore wing: 1-SR about 4 times longer than wide and linear with 1-M; pterostigma triangular and r linear with postero-basal border (Figs 45, 55); 1-R1 ending at wing apex and 1.7 times as long as pterostigma; r linear with 3-SR and medium-sized; r-m unsclerotized; 1-SR+M narrow and sclerotized; r:3-SR:SR1 = 2:9:16; 2-SR:3-SR:r-m = 23:45:13; 1-M straight and SR1 slightly curved; m-cu far antefurcal and straight, converging to 1-M (Fig. 45); 2-SR+M rather long and narrow (Fig. 55); cu-a medium-sized, oblique and far postfurcal; 1-CU1 straight and widened; 1-CU1:2-CU1= 15:24; first subdiscal cell widened apically and closed, CU1b medium-sized; only apex of M+CU1 sclerotized. Hind wing: 2-M slightly sinuate; M+CU:1-M:1r-m = 5:5:3; cu-a straight; m-cu and SR absent.

Legs. Length of femur, tibia and basitarsus of hind leg 3.5, 8.6 and 5.6 times as long as width, respectively (Fig. 42); hind femur with rather long setae.

Metasoma. Length of first tergite 1.1 times its apical width, convex medio-posteriorly, its surface largely finely rugose (Fig. 48), dorsal carinae strong in basal 0.7 of tergite and with depressed area below; second suture slightly indicated; basal depressions of second tergite deep and elliptical; second tergite 0.5 times as long as third tergite; second partly superficially coriaceous and following tergites smooth, shiny and sparsely setose; combined length of second and third metasomal tergites 0.25 times total length of metasoma; length of setose part of ovipositor sheath 0.47 times fore wing, as long as metasoma, 3.2 times first tergite, twice hind femur and 1.5 times hind tibia; hypopygium about 0.5 times as long as metasoma, distinctly acute apically and reaching apex of metasoma (Fig. 51).

Colour. Brownish yellow; stemmaticum black; antenna (except scapus and pedicellus but with dark patch on outer side, third segment darker than fourth one and apical segments becoming paler), ovipositor sheath, base of hind tibia and hind tarsus largely dark brown; tegulae pale yellow; palpi and base of legs ivory; pterostigma pale brown with margins darkened (Fig. 45) and veins brown; wing membrane subhyaline.

Variation. Length of fore wing 2.9–3.3 mm; antenna of ♀ with 37–44 segments and 1.4–1.5 times as long as fore wing; OOL 1.2–1.7 times diameter of posterior ocellus and POL 0.8–1.0 times diameter of ocellus; first tergite 1.1–1.3 times as long as its apical width (Figs 48, 59); hind femur 3.4–3.8 times as long as wide; setose part of ovipositor sheath 0.45–0.47 times as long as fore wing and 1.4–1.5 times hind tibia; second tergite more or less coriaceous; pterostigma of ♂ somewhat darker than of ♀ (Fig. 55); posterior areola of propodeum short (♀) or elongate triangular (♂) with long and rather short median carina, respectively (Figs 63–64); second–sixth tergites of ♂ partly dark brown and first tergite infuscate (Figs 53, 59); ♀ from Guizhou has base of hind tibia yellowish, basal half of antenna mainly brownish yellow (including third segment), propodeum more sculptured, antenna with 37 segments and second tergite almost entirely smooth. Males have mesoscutum only slightly darker brown laterally than medially, without distinct pattern (Fig. 58).

China (Hainan, Guizhou).

Unknown.

From “major” (Latin for “larger”) and “ocellus” (Latin for “small eye”) because of the larger ocelli.

Very similar to P. fletcheri because of the short vein 2-SR+M of fore wing (about twice as long as wide) and the strongly curved vein m-cu of fore wing. Psyttalia makii has vein r of fore wing about 0.8 times as long as vein 2-SR (about as long as vein 2-SR in P. fletcheri) and vein 1-CU1 of fore wing about as long as vein cu-a (at most 0.7 times as long as vein cu-a).

China (Taiwan, type locality); Indonesia (Java); Malaysia (Peninsular), Philippines (Mindanao); Thailand; U.S.A. (Hawaii, introduced but not retrieved).

Parasitoid of Tephritidae: mainly reported from Bactrocera species (Yu et al. 2012).

2 ♀ (ZISP), “[Russia:], Amurskaja oblast, s. Novorossijka, r. Selemdzha, 1–10.viii.1966, D. Kasparjan”; 1 ♀ (ZISP), “[Russia:], Primorskij kraj, okr. Nachodki, dubnjak kustarnik, 20.viii.1985, Belokobylskij”; 1 ♀ (ZISP), id., but Baradazh-Levada, 2.ix.1978, “Opius romani Fahr., det. Tobias 1994”; 1 ♀ (ZJUH), “[NW. China:] Shaanxi, Dasanguan, 4.ix.1999, Ping Cai, No. 200011724”.

In the East Palaearctic region the only similar Psyttalia species known is P. sakhalinica (Tobias) because of the similar gradually narrowed head in dorsal view (Figs 72, 84). Psyttalia romani differs by having mesosoma orange brown, contrasting with mainly black metasoma (vs meso- and metasoma mainly black or dark brown in P. sakhalinica), hind femur 2.9–3.3 times as long as wide (vs 3.5–3.9 times), fore wing distinctly infuscate (vs slightly infuscate) and legs yellowish brown (vs brownish yellow).

Redescribed after ♀ from Novorossijka, length of body 4.4 mm, of fore wing 4.4 mm.

Head. Antenna with 47 segments, bristly and erect setose and 1.4 times as long as fore wing; third segment 1.6 times as long as fourth segment, length of third, fourth and penultimate segments 3.4, 2.2 and 1.9 times their width, respectively (Figs 70, 75–76); length of maxillary palp equal to height of head; length of eye in dorsal view 2.2 times temple (Fig. 72); temple in dorsal view shiny, smooth and with sparse setae; OOL: diameter of ocellus: POL = 14:5:8; area behind stemmaticum flat (Fig. 72); face coarsely punctate with most interspaces wider than diameter of punctures, shiny and smooth medio-longitudinal convexity dorsally and widened ventrally (Fig. 71); frons slightly depressed behind antennal sockets and in front of anterior ocellus slightly impressed, shiny, smooth and glabrous but laterally with few setae (Fig. 72); labrum slightly depressed; clypeus transverse, convex, with some coarse punctures and its ventral margin protruding, with fringe of long setae and rather thin (Fig. 71); width of clypeus 3.4 times its maximum height and 0.7 times width of face; hypoclypeal depression wide and deep (Figs 67, 71); malar suture indistinct except for deep depression near eye, sparsely punctate-rugose between malar suture and clypeus (Fig. 74); mandible not twisted, apically moderately narrowed and with both teeth wide; mandible normal basally and with narrow ventral carina (Fig. 74); occipital carina remains far removed from hypostomal carina and dorsally largely absent; hypostomal carina rather wide ventrally.

Mesosoma. Length of mesosoma 1.2 times its height; dorsal pronope absent; pronotal side largely smooth, but posteriorly grooves with some crenulae (Fig. 67); propleuron flattened; epicnemial area smooth dorsally; precoxal sulcus anteriorly and medially rather narrowly crenulate, absent posteriorly (Fig. 67); remainder of mesopleuron smooth and shiny except for some crenulae dorsally; pleural sulcus smooth ventrally except for a few short crenulae; mesosternal sulcus deep, narrow and finely crenulate; postpectal carina absent; mesoscutum very shiny and glabrous (Fig. 68); notauli only anteriorly as smooth impressions and absent on disc; scutellar sulcus deep and with 5 short crenulae, parallel-sided medially; scutellum slightly convex and smooth, but laterally sparsely punctulate and setose (Fig. 68); metanotum with short longitudinal carina antero-medially and finely crenulate posteriorly; surface of propodeum smooth dorsally but posteriorly and area near distinct and reversed Y-shaped median carina rugose (Fig. 68), lateral grooves shallow and irregularly rugose.

Wings. Fore wing: 1-SR distinctly longer than wide and linear with 1-M (Fig. 66); pterostigma triangular and r linear with postero-basal border (Fig. 66); 1-R1 ending at wing apex and 1.6 times as long as pterostigma; r linear with 3-SR and medium-sized; r-m not tubular; r:3-SR:SR1 = 10:40:73; 2-SR:3-SR:r-m = 22:40:13; 1-M and SR1 slightly curved; m-cu distinctly antefurcal, converging to 1-M posteriorly and slightly curved, 2-SR+M rather widened (as apex of M+CU1: Fig. 66); cu-a distinctly postfurcal and 1-CU1 widened; 1-CU1:2-CU1= 3:22; first subdiscal cell closed; CU1b medium-sized; only apical fifth of M+CU1 sclerotized. Hind wing: 1-M straight; M+CU:1-M:1r-m = 22:23:15; cu-a straight; m-cu absent; SR slightly indicated apically.

Legs. Length of femur, tibia and basitarsus of hind leg 2.9, 6.8 and 4.2 times as long as width, respectively (Fig. 73); hind femur with long setae, tarsus and tibia densely setose (Fig. 73).

Metasoma. Length of first tergite equal to its apical width, convex medio-posteriorly, its surface largely coarsely rugose (Fig. 69), dorsal carinae strong in its basal half and with depressed area below; second suture slightly indicated; pair of basal depressions of second tergite large and tergite 0.9 times as long as third tergite; second and following tergites smooth, shiny and sparsely setose; combined length of second and third metasomal tergites 0.25 times total length of metasoma; length of setose part of ovipositor sheath 0.56 times fore wing, 4.9 times first tergite, 2.4 times hind femur and 1.7 times hind tibia; hypopygium 0.6 times as long as metasoma, distinctly acute apically and surpassing apex of metasoma (Fig. 73).

Colour. Orange brown, but stemmaticum and metasoma (except mainly reddish brown first tergite, lateral patches of sternites and tergites and hypopygium dorsally brown), tegulum pale yellowish and humeral plate infuscate; palpi, scapus and pedicellus ventrally and legs yellowish brown, but telotarsi infuscate; pterostigma and veins dark brown; fore wing membrane distinctly infuscate, especially near veins.

Variation. Length of fore wing 4.4–4.7 mm; antenna of ♀ with 47 segments; dorsal pronope absent or present as small round pit; vein 3-SR of fore wing 1.4–1.8 times as long as vein 2-SR; hind femur 2.9–3.2 times as long as wide; setose part of ovipositor sheath 0.46–0.56 times as long as fore wing and 1.5–1.7 times hind tibia.

China (Gansu, *Shaanxi), Russia Far East, Korea.

Unknown.

Holotype, ♀ (ZISP), “[Russia], 10 km z Anivy, smles, Sachalin, 15.vii.[1]981, Belokobylskij”, “Opius sakhalinicus sp. n., det. Tobias, [19]95”; “Holotypus Opius sakhalinicus Tobias”.

1 ♀ (ZISP) “[Russia], o. Kunamir, Yu.-Kurilsk, r. lesky, 19.viii.1989, A. Lelej”, “Psyttalia sakhalinicus Tob., Tobias det. 2001”.

See P. romani (Fahringer).

Holotype, ♀, length of body 4.6 mm, of fore wing 4.8 mm.

Head. Antenna with 45 segments, bristly and erect setose and 1.3 times as long as fore wing; third segment 1.4 times as long as fourth segment, length of third, fourth and penultimate segments 2.8, 2.0 and 2.3 times their width, respectively (Figs 82, 87–88); length of maxillary palp 1.3 times height of head; length of eye in dorsal view 2.5 times temple (Fig. 84); temple in dorsal view shiny, smooth and with sparse setae; OOL: diameter of ocellus: POL = 9:5:6; area behind stemmaticum flat (Fig. 84); face coarsely punctate with interspaces about equal to diameter of punctures, with satin sheen and sparsely punctulate with a medio-longitudinal convexity dorsally and widened ventrally (Fig. 83); frons slightly depressed behind antennal sockets and in front of anterior ocellus, shiny, smooth and glabrous but laterally setose and punctulate (Fig. 84); labrum slightly depressed; clypeus transverse, convex, and its ventral margin concave, obtuse and thick (Fig. 83); width of clypeus 5.0 times its maximum height and 0.7 times width of face; hypoclypeal depression wide and deep (Figs 79, 83); malar suture indistinct except for deep depression near eye, punctate-rugose between malar suture and clypeus (Fig. 86); mandible not twisted, apically moderately narrowed and with both teeth wide; mandible normal basally and with narrow ventral carina (Fig. 86); occipital carina remains far removed from hypostomal carina and dorsally largely absent; hypostomal carina rather wide ventrally.

Mesosoma. Length of mesosoma 1.2 times its height; dorsal pronope small, round; pronotal side largely smooth, but anterior and posterior grooves present and largely smooth (Fig. 79); propleuron flattened; epicnemial area smooth dorsally; precoxal sulcus medially medium-sized and only medially distinctly crenulate, absent posteriorly (Fig. 79); remainder of mesopleuron smooth and shiny; pleural sulcus smooth ventrally; mesosternal sulcus deep, narrow and finely crenulate; postpectal carina absent; mesoscutum very shiny and glabrous (Fig. 80); notauli only anteriorly as pair of nearly smooth impressions and absent on disc; scutellar sulcus deep and with 4 short crenulae, parallel-sided medially; scutellum slightly convex and smooth, but laterally sparsely punctulate and setose (Fig. 80); metanotum without a longitudinal carina medially and finely crenulate posteriorly; surface of propodeum smooth except for rugose area near distinct and reversed Y-shaped median carina (Fig. 80), lateral grooves shallow and irregularly rugose and anterior groove somewhat widened medially (Fig. 80).

Wings. Fore wing: 1-SR distinctly longer than wide and linear with 1-M (Fig. 78); pterostigma triangular and r linear with postero-basal border (Fig. 78); 1-R1 ending at wing apex and 1.4 times as long as pterostigma (Fig. 78); r linear with 3-SR and medium-sized; r-m not tubular; r:3-SR:SR1 = 5:22:44; 2-SR:3-SR:r-m = 15:22:7; 1-M and SR1 straight; m-cu distinctly antefurcal and slightly curved, 2-M+CU1 rather widened (as apex of M+CU1: Fig. 78); cu-a distinctly postfurcal and 1-CU1 widened; 1-CU1:2-CU1 = 2:11; first subdiscal cell closed; CU1b medium-sized; only apex of M+CU1 sclerotized. Hind wing: 1-M straight; M+CU:1-M:1r-m = 30:24:11; cu-a straight; m-cu absent; SR slightly indicated.

Legs. Length of femur, tibia and basitarsus of hind leg 3.9, 8.3 and 5.4 times as long as width, respectively (Fig. 85); hind femur and tibia with long setae.

Metasoma. Length of first tergite 1.1 times to its apical width, convex medio-posteriorly, its surface strongly and densely rugose (Fig. 81), dorsal carinae strong in its basal half and with depressed area below; second suture slightly indicated; basal depressions of second tergite large and tergite 0.9 times as long as third tergite; second and following tergites smooth, shiny and sparsely setose; combined length of second and third metasomal tergites 0.25 times total length of metasoma; length of setose part of ovipositor sheath 0.53 times fore wing, 3.8 times first tergite, 2.3 times hind femur and 1.7 times hind tibia; hypopygium about 0.5 times as long as metasoma, distinctly acute apically and reaching apex of metasoma (Fig. 85).

Colour. Black, but head (except dark brown frons and vertex but excluding orbita) and propleuron, propleuron ventrally, tegulae, scapus ventrally, sternites (except medially) and second-seventh tergites laterally largely orange brown; palpi, mandible (but teeth dark brown) and legs brownish yellow, but apical half of tarsi infuscate; metasoma apically, remainder of propleuron and mesopleuron anteriorly dark brown; pterostigma and veins dark brown; fore wing membrane slightly infuscate.

Variation. Length of fore wing 4.8–5.0 mm; antenna of ♀ with 44–45 segments; first tergite 1.0–1.1 times as long as its apical width, more or less flattened; precoxal sulcus nearly smooth to distinctly crenulate medially; face punctate to densely punctate-rugose; hind femur 3.5–3.9 times as long as wide; setose part of ovipositor sheath 0.51–0.53 times as long as fore wing and 1.6–1.7 times hind tibia; second tergite black or orange brown anteriorly.

Russia Far East.

Unknown.

Holotype, ♀ (RMNH), “Museum Leiden, Japan[: Honshu], Gaga Spa-Zaô, Miyagi Pref., 31.vii.1981, A. Takasu”. Paratype: 1 ♀ (RMNH) with same data as holotype.

The new species runs in the keys to Palaearctic Opiinae by Fischer (1972) to Diachasma mysticum (= Rhogadopsis mystica (Fischer, 1963) comb. n.) from Japan. It differs from R. mystica by having the head and mesosoma (except propodeum and metapleuron) brownish yellow (vs head, except clypeus, and mesosoma black in R. mystica), vein CU1b of fore wing much shorter than vein 3-CU1 (Fig. 90; vs vein CU1b about as long as vein 3-CU1); pterostigma distinctly triangular (Fig. 90; vs elongate); medio-posterior depression of mesoscutum absent (vs present); vein r of fore wing continuous with vein 3-SR (Fig. 90; vs vein r of fore wing rather angled with vein 3-SR); vein SR1 of fore wing about 1.8 times vein 3-SR (Fig. 90; vs vein SR1 of fore wing about 2.7 times vein 3-SR) and length of body 5–6 mm (vs about 3 mm). In the key by Fischer (1987) the new species runs to the Oriental P. walkeri (Muesebeck). The new species differs by having lateral crenulate grooves on the propodeum (Fig. 93; vs absent and instead with carina in P. walkeri), propodeum and first–fifth tergites largely black (vs reddish yellow or partly infuscate), hind tibia (except ventrally) and tarsus dark brown, contrasting with ivory hind femur (Fig. 99; vs hind femur, tibia and tarsus similar pale yellow), pterostigma dark brown (vs pale yellow), length of body 5–6 mm (vs 2–3 mm) and vein 2-CU1 of fore wing at same level as vein M+CU1 (Fig. 90; vs vein 2-CU1 distinctly below level of vein M+CU1).

Holotype, ♀, length of body 5.6 mm, of fore wing 5.2 mm.

Head. Antenna with 52+ segments (its apex missing), bristly and erect setose and 1.4 times as long as fore wing; third segment 1.2 times as long as fourth segment, length of third and fourth segments 2.6 and 2.1 times their width, respectively (Figs 97–98); length of maxillary palp 1.2 times height of head; length of eye in dorsal view 4.6 times temple (Fig. 96); temple in dorsal view shiny, largely smooth and with sparse punctures; OOL: diameter of ocellus: POL = 9:5:4; area behind stemmaticum with groove, widened laterally (Fig. 96); face moderately punctate with interspaces wider than diameter of punctures, except submedially, shiny and medio-longitudinal convexity mainly smooth and ventrally widened (Fig. 95); frons moderately depressed behind antennal sockets, shiny, rugose and glabrous but laterally setose and punctulate, in front of anterior ocellus with narrow groove and narrow smooth ridge (Fig. 96); labrum flat; clypeus transverse, convex, coarsely punctate and its ventral margin slightly convex and thin (Fig. 95); width of clypeus 4.0 times its maximum height and 0.8 times width of face; hypoclypeal depression wide and deep (Figs 91, 95); malar space narrow (Fig. 95); malar suture indistinct except for deep depression near eye, between malar suture and clypeus punctate; mandible not twisted, apically moderately narrowed, punctate and with both teeth wide; mandible normal basally and with narrow ventral carina (Fig. 91); occipital carina remains far removed from hypostomal carina and dorsally largely absent; hypostomal carina rather wide ventrally.

Mesosoma. Length of mesosoma 1.3 times its height; dorsal pronope small, round; pronotal side largely smooth, but anterior and posterior grooves present and coarsely crenulate (Fig. 91); propleuron flattened; epicnemial area smooth dorsally; precoxal sulcus medially medium-sized and only medially distinctly crenulate, absent anteriorly and posteriorly (Fig. 91); remainder of mesopleuron smooth and shiny; pleural sulcus very finely crenulate ventrally; mesosternal sulcus deep, narrow and finely crenulate; postpectal carina absent; mesoscutum shiny and glabrous (Fig. 92); notauli only anteriorly as pair of nearly smooth impressions and absent on disc, but notaulic courses indicated by setae and punctulation; scutellar sulcus deep and with 5 long crenulae, parallel-sided medially; scutellum rather convex and smooth, but laterally sparsely punctulate and setose (Fig. 92); metanotum with a short medio-longitudinal carina anteriorly and its posterior face finely crenulate; surface of propodeum smooth except for crenulate grooves near distinct and reversed Y-shaped median carina (Fig. 93), lateral grooves deep and coarsely regularly crenulate, and anterior groove somewhat widened medially (Fig. 93).

Wings. Fore wing: 1-SR longer than wide and slightly angled with 1-M (Fig. 90); pterostigma wide triangular and r nearly linear with postero-basal border (Fig. 90); 1-R1 ending at wing apex and 1.3 times as long as pterostigma (Fig. 90); r nearly linear with 3-SR and medium-sized; r-m not tubular; r:3-SR:SR1 = 5:20:42; 2-SR:3-SR:r-m = 13:20:6; 1-M straight; SR1 distinctly curved; m-cu distinctly antefurcal, subparallel with 1-M and straight, 2-SR+M slender (as apex of M+CU1: Fig. 90); cu-a distinctly postfurcal and 1-CU1 widened; 1-CU1:2-CU1 = 5:31; first subdiscal cell closed; CU1b medium-sized; only apex of M+CU1 sclerotized. Hind wing: 1-M straight; M+CU:1-M:1r-m = 30:35:13; cu-a straight; m-cu absent; SR entirely absent.

Legs. Length of femur, tibia and basitarsus of hind leg 3.4, 8.2 and 4.9 times as long as width, respectively (Fig. 99); hind femur and tibia with long setae and densely setose.

Metasoma. Length of first tergite 1.1 times to its apical width, convex medio-posteriorly, convexity surrounded by crenulate groove, its surface densely punctate-rugose (Fig. 93), dorsal carinae strong in its basal half and with depressed area below; second suture slightly indicated; basal depressions of second tergite medium-sized and tergite 0.7 times as long as third tergite, both smooth (except some punctulation) and largely setose; following tergites smooth, shiny and sparsely setose; combined length of second and third metasomal tergites 0.26 times total length of metasoma; sixth tergite membranous medio-posteriorly; length of setose part of ovipositor sheath 0.46 times fore wing, 2.9 times first tergite, 2.0 times hind femur, 1.4 times hind tibia and 0.9 times metasoma; hypopygium 0.35 times as long as metasoma, acute apically and reaching apex of metasoma (Fig. 94).

Colour. Brownish yellow; propodeum, first tergite, second tergite except laterally, third tergite except posteriorly, fourth and fifth tergites (but anteriorly and posteriorly brownish) black; metapleuron chestnut brown; palpi, legs (but hind tibia and tarsus mainly dark brown) and remainder of metasoma ivory; tegulae pale yellowish; antenna (but scapus and pedicellus mainly yellow), pterostigma and veins dark brown; fore wing membrane subhyaline.

Variation. Paratype: length of fore wing 4.3 mm; antenna with 52 segments; first tergite 1.1 times as long as its apical width and only superficially punctate medially; hind femur 3.8 times as long as wide; setose part of ovipositor sheath 0.47 times as long as fore wing and 1.5 times hind tibia; hind tibia ivory ventrally and propodeum chestnut brown.

Japan.

Unknown.

The name refers to the showy combination of colours of this species: “spectabilis” is Latin for “showy, notable”.

Rhogadopsis mystica (Fischer, 1963) comb. n. was originally described in the genus Opius Wesmael and up to now only known of the male holotype. It was later included in Diachasma Foerster, 1863, by Fischer (1972). The latter is an obvious misfit because the clypeus is truncate ventrally (vs convex in Diachasma) and it has a distinct hypoclypeal depression below it (vs absent or as a narrow slit in Diachasma), vein 3-SR of fore wing longer than vein 2-SR and vein m-cu of hind wing absent (according to the original description veins 2-SR and 3-SR equal, but in the figured fore wing 3-SR 1.2 times longer than 2-SR; vs in Diachasma vein 3-SR usually shorter than vein 2-SR and if subequal then vein m-cu of hind wing at least present as a distinctly pigmented trace). Tobias (1998) included it in the subgenus Aulonotus Ashmead of Opius Wesmael. Aulonotus Ashmead is a synonym of Xynobius Foerster, 1863 (Li et al. 2013), but it is unlikely that it belongs there because the dorsal carinae are weakly developed, the marginal cell of the hind wing is wide and vein 3-SR of fore wing slightly longer than vein 2-SR (Fischer 1963). According to the original description vein m-cu of fore wing is distinctly curved and gradually merging into vein 2-CU1, vein 1r-m of hind wing is weakly oblique and 0.7 times as long as vein 1-M, hind wing comparatively wide and medio-longitudinal carina of propodeum present anteriorly, what agrees well with the definition of Rhogadopsis Brèthes, 1913 (Li et al. 2013). It can be separated from other Rhogadopsis species by its complete notauli combined with the antefurcal vein m-cu, short vein 1-SR and distally widened first subdiscal cell of the fore wing.