Research Article |
Corresponding author: Xue-xin Chen ( xxchen@zju.edu.cn ) Academic editor: Jose Fernandez-Triana
© 2017 Pu Tang, Cornelis van Achterberg, Xue-xin Chen.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Tang P, van Achterberg C, Chen X-X (2017) The genus Braunsia Kriechbaumer, 1894 from China with description of two new species (Hymenoptera, Braconidae, Agathidinae). ZooKeys 705: 95-114. https://doi.org/10.3897/zookeys.705.14717
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The species of Braunsia Kriechbaumer, 1894 (Hymenoptera, Braconidae, Doryctinae) from China are revised and ten species are recognized. Two new species, B. guangdongensis sp. n. and B. shenyangensis sp. n., are described and illustrated. B. fumipennis (Cameron, 1899), B. pilosa Belokobylskij, 1986, B. postfurcalis Watanabe, 1937, and B. smithii (Dalla Torre, 1898), are recorded from China for the first time. A key to the Chinese species of the genus Braunsia is provided.
Agathidinae , Braunsia , China, key, new record, new species, taxonomy
Braunsia Kriechbaumer, 1894, is a medium-sized genus of the subfamily Agathidinae (Braconidae) mostly distributed in the Oriental and Afrotropical regions (
During our study of Chinese Agathidinae, we discovered ten species of Braunsia (of which only three were known from China before), B. antefurcalis, B. fumipennis (Cameron, 1899), B. guangdongensis sp. n., B. longicoxa, B. matsumurai, B. pappi, B. pilosa Belokobylskij, 1986, B. postfurcalis Watanabe, B. shenyangensis sp. n. and B. smithii (Dalla Torre, 1898). In this paper both new species are described and illustrated and a key to the Chinese species of Braunsia is provided. The problematic variation of B. bipunctata Enderlein is discussed.
This study is based on specimens preserved in the Parasitic Hymenoptera Collection of Institute of Insect Sciences, Zhejiang University, Hangzhou, China (
The terminology and measurements used follow
1 | Vein cu-a of fore wing postfurcal or interstitial (Figs |
2 |
– | Vein cu-a of fore wing antefurcal (Figs |
6 |
2 | Length of first tergite 2.8–3.0 times its apical width (Fig. |
B. postfurcalis Watanabe |
– | Length of first tergite 1.8–2.0 times its apical width (Figs |
3 |
3 | Propodeum with a closed areola; hind leg yellowish brown (Fig. |
4 |
– | Propodeum without a closed areola (Fig. |
B. shenyangensis sp. n. |
4 | Vein 1-R1 of fore wing yellowish, similar to colour of pterostigma; dark brown area below parastigma up to middle of fore wing | B. smithii (Dalla Torre) |
– | Vein 1-R1 of fore wing dark brown, darker than yellowish pterostigma (Fig. |
5 |
5 | Basal half of first tergite with distinct striae (Fig. |
B. matsumurai Watanabe |
– | Basal half of first tergite smooth; hind tibia whitish yellow basally, contrasting with brownish yellow remainder of hind tibia; tegulae whitish yellow, contrasting with brownish yellow mesoscutum | B. pappi Chen & Yang |
6 | Antenna, hind coxa and hind femur black (Figs |
7 |
– | Antenna, hind coxa and hind femur yellowish brown (Figs |
8 |
7 | Hind tibia black (Fig. |
B. fumipennis (Cameron) |
– | Hind tibia brown (Fig. |
B. pilosa Belokobylskij |
8 | Length of first tergite 4.2–5.3 times its apical width (Fig. |
B. longicoxa Bhat & Gupta |
– | Length of first tergite 2.7–3.8 times its apical width (Figs |
9 |
9 | Length of first tergite 2.7–2.8 times its apical width (Fig. |
B. guangdongensis sp. n. |
– | Length of first tergite 3.2–3.6 times its apical width (Fig. |
B. antefurcalis Watanabe |
Braunsia
antefurcalis
Watanabe, 1937: 90;
Braunsia
romani
Shestakov, 1940: 12;
Braunsia
graciliventris
Belokobylskij, 1989: 70 (syn. by
China (
Braunsia antefurcalis is very similar to B. guangdong sp. n. and B. longicoxa. The differences between them are in the lengths of the first tergite, second tergite, and hind femur as well as the colour pattern in face, clypeus, and wing membranes.
Oriental and East Palaearctic regions. China (Zhejiang, Fujian, Henan, Sichuan, Shaanxi); Japan; Russia (
Braunsia
bipunctata
Enderlein, 1906: 263;
Oriental region. China (Fujian?, Taiwan?); Indonesia (
Microdus fumipennis Cameron, 1899: 96.
Disophrys fumipennis : Dover 1925: 40.
Bassus fumipennis : Thompson 1953: 94.
Braunsia
fumipennis
: Baltazar 1963: 2;
Braunsia
pumatica
van Achterberg & Long, 2010: 45 (syn. by
Vietnam (
Braunsia fumipennis is similar to B. pilosa, but differs in the the body colour pattern (hind tibia brown; mesosoma black); shorter length of first tergite (2.3 times its apical width); and apical half of first tergite smooth.
Oriental region. China (Yunnan, Tibet) new record; India; Myanmar; Thailand; Vietnam (
Holotype. ♀, Guangdong prov., Longmen Nankunshan, 14–15.VII.2003, Xu Zaifu, No. 20053640 (
Body black. Antenna, hind coxa and hind femur yellowish brown. Area below face and clypeus ivory. Wing membrane evenly dark brown. Vein cu-a of fore wing antefurcal. Length of hind femur 5.2–5.3 times as long as wide. Length of first tergite 2.7–2.8 times its apical width. Ovipositor sheath ribbon-shaped widened.
Holotype, ♀, length of body 9.0 mm, of fore wing 7.0 mm.
Head. Antennal segments 45, length of third segment 1.15 times fourth segment, length of third, fourth and penultimate segments 2.5, 2.2 and 1.7 times their width, respectively; length of maxillary palp 0.7 times height of head; in dorsal view head transverse and 1.3 times as wide as mesoscutum; length of eye 2.2 times temple; POL:OD:OOL = 9:6:13; antennal sockets not tubular; occipital flange sharp; malar space 1.8 times as long as basal width of mandible; face shiny with sparse fine punctures, frons and vertex smooth.
Mesosoma. Length of mesosoma 1.5 times its height; subpronope large and deep; side of pronotum smooth; area near lateral carina of mesoscutum crenulate; lateral lobes of mesoscutum almost smooth, sparsely finely punctate anteriorly; middle lobe with sparse fine punctures; notauli deep, smooth; scutellar sulcus 0.5 times as long as dorsal face of scutellum and with one carina; scutellum convex anteriorly, smooth and with long setae; mesopleuron above precoxal sulcus largely smooth; mesopleuron below precoxal sulcus setose, with sparse fine punctures; precoxal sulcus wide, shallow and distinctly crenulate; metapleuron mainly smooth with long setae; propodeum setose, with a strong transverse carina subbasally, rugose posteriorly; spiracle medium-sized, round, 1.8 times as long as wide.
Wings. Fore wing: second submarginal cell pentagonal, narrow anteriorly, with rather long ramellus, 0.9 times as long as vein 2-SR (14:15); r:3-SR:SR1 = 8:3:72; 2-SR:3-SR:r-m = 15:3:15; vein cu-a antefurcal. Hind wing: vein 2-SR+M transverse; vein M+CU 0.5 times as long as 1-M; surroundings of cu-a glabrous.
Legs. Length of hind femur, tibia and basitarsus 5.2, 9.2 and 5.0 times their width, respectively; hind coxa smooth; hind femur with short and sparse setosity; outer side of apical third of middle tibia with a row of 4 pegs; outer side of apex of hind tibia with a cluster of 6 pegs; length of outer and inner spurs of middle tibia 0.4 and 0.5 times middle basitarsus, respectively; length of outer and inner spurs of hind tibia 0.3 and 0.4 times hind basitarsus.
Metasoma. First tergite slender shiny, rugulose near apex, slightly and roundly widened apically; length of first tergite 2.7 times its apical width; dorsal carinae of first tergite divergent and on three-fourths of tergite; second tergite 1.6 times as long as wide apically and with posteriorly diverging striae, apical third of second tergite with transverse furrow; anterior half of third tergite striate and apical half finely granulate; remainder of metasoma smooth, ovipositor sheath wide and ribbon-shaped, as long as fore wing.
Colour. Black; malar space, lower part of temple and face laterally narrowly ivory, clypeus, palpi and medial part of face pale yellow; antenna, legs and metasoma yellowish-brown, but tarsi paler than tibiae; wing membrane rather dark brown.
Male. Unknown.
Vein M+CU of hind wing 0.5–0.6 times as long as 1-M; length of first tergite 2.7–2.8 times its apical width; length of hind femur, tibia and basitarsus 5.2–5.3, 9.0–9.4 and 5.0–5.2 times their width; outer side of apical third of middle tibia with a row of 3–5 pegs; outer side of hind tibial apex with cluster of 67 pegs.
Oriental region. China (Guangdong).
Unknown.
This new species is very similar to B. antefurcalis Watanabe, but differs in having the first tergite 2.7–2.8 times as long as its apical width; length of hind femur about 5.2–5.3 times as long as its width and area below face and clypeus ivory.
From “Guangdong”, the province of the type locality.
Braunsia
longicoxa
Bhat & Gupta, 1977: 74;
China (
Similar body colour pattern to B. antefurcalis and B. guangdong sp. n., but differs in having long first and second tergites; colour pattern in wing membrane (only dark brown in apical half).
Oriental region. China (Guangxi, Hainan, Taiwan); Philippines (
Braunsia
matsumurai
Watanabe, 1937: 89;
China (
This species is similar to B. pappi, especially in the colour pattern, but differs in the basal half of first tergite with distinct striae; hind tibia brownish yellow; tegulae and mesoscutum with same colour (tegulae whitish yellow, contrasting with brownish yellow mesoscutum in B. pappi).
Oriental and East Palaearctic regions. China (Zhejiang, Fujian, Hunan, Guangdong, Guangxi); Japan; Korea (
Braunsia pappi Chen & Yang, 2006: 107.
This species is only recorded from China (Fujian). It is similar to B. matsumurai, and see the differences between them in the diagnosis of B. matsumurai. The illustrations of B. pappi provided by Sharkey and Yu clearly show that the length of first tergite is actually 1.8 times as long as its apical width not 3.0 times as mentioned in the description of
Oriental region. China (Fujian) (
Braunsia
pilosa
Belokobylskij, 1986: 33; 1989: 64;
China (
This species almost melanistic, the wings infuscate; apical half of first tergite smooth; ovipositor sheath ribbon-shaped and widened.
Oriental and East Palaearctic regions. China (Henan, Zhejiang, Anhui, Yunnan) new record; Japan; Russia (
Braunsia
postfurcalis
Watanabe, 1937: 88;
China (
This species yellowish brown, the wings and pterostigma yellow; the first tergite is almost entirely smooth; the ovipositor sheath is long, almost as long as body; fore wing without isolated stigma spot.
Oriental and East Palaearctic regions. China (Zhejiang, Anhui) new record; Japan (
Holotype. ♀, China, Liaoning prov., Shenyang, IX.1955, No. 6503222 (
Body brownish yellow. Hind leg black. Fore wing with a small isolated stigmal spot. Pterostigma yellow. Propodeum without a closed areola. Vein cu-a of fore wing almost interstitial; Length of first tergite 1.8 times its apical width. First tergite entirey longitudinally carinate. length of second tergite 1.2 times its width. Ovipositor sheath not widened, distinctly shorter than body.
Holotype, ♀, length of body 15.1 mm, of fore wing 13.5 mm.
Head. Antennal segments missing; in dorsal view length of eye twice temple; POL:OD:OOL = 8:6:14; occipital flange large, its ventral margin convex bellow; face shiny smooth with sparse punctures; frons smooth, vertex smooth, sparsely setose.
Mesosoma. Length of mesosoma 1.5 times its height; subpronope large and deep; side of pronotum smooth; area near lateral carina of mesoscutum smooth; lateral lobes of mesoscutum almost smooth; notauli deep, smooth, scutellar sulcus 0.5 times as long as dorsal face of scutellum and with 3 carinae; scutellum smooth, distinctly convex anteriorly and sloping posteriorly; mesopleuron above precoxal sulcus shiny and smooth, below precoxal sulcus shiny with minute punctures; precoxal sulcus narrow, similar to a smooth groove; metapleuron smooth; propodeum with a subbasal transverse carina, without a closed areola, spiracle large, elliptical, close to lateral carina and 2.8 times as long as wide; lateral carina of propodeum completely.
Wings. Fore wing: second submarginal cell pentagonal, narrow anteriorly, with rather long ramellus, 1.4 times as long as vein 2-SR (14:10); r:3-SR:SR1 = 9:4:70; 2-SR:3-SR:r-m = 14:4:14; vein cu-a almost interstitial. Hind wing: vein 2-SR+M transverse; vein M+CU 0.9 times as long as 1-M; surroundings of vein cu-a sparsely setose.
Legs. Length of hind femur, tibia and basitarsus 4.9, 8.3 and 8.6 times their width, respectively; hind coxa smooth; hind femur with short and dense setosity; outer side of apical third of middle tibia with a row of 4 pegs and cluster of 4 pegs at apex; outer side of apex of hind tibia with a cluster of 6 pegs; length of outer and inner spurs of middle tibia 0.4 and 0.5 times middle basitarsus, respectively; length of outer and inner spurs of hind tibia 0.3 and 0.4 times hind basitarsus, respectively.
Metasoma. First tergite moderately long, widened apically, 1.8 times its apical width; first tergite entirely longitudinally striate; dorsal carinae of first tergite strong, diverging apically; second tergite as long as third tergite, deep striate transverse groove on apical third; third tergite with parallel striae but smooth on extreme apex; striate transverse groove on apical third wide; remainder of metasoma smooth with sparse setae apically; ovipositor sheath broken; ovipositor about as long as fore wing.
Colour. Brownish yellow; fore wing with a brown stigmal spot; apical third of wings infuscate and basal two-thirds yellow; parastigma yellow; hind leg black; metasoma black, but basal half of first and second tergites and ventral part of first-third metasomal segments brownish yellow.
Male. Unknown.
East Palaearctic region. China (Liaoning).
Unknown.
This new species is very similar to B. matsumurai Watanabe, but differs by having no closed areola on the propodeum; the fore wing with a small isolated stigmal spot; the hind leg black; and vein cu-a of the fore wing almost interstitial.
From “Shenyang”, the type locality of the species.
Agathis flavipennis Smith, 1863: 12 (not Agathis flavipennis Brullé, 1846).
Braunia
flavipennis
:
Agathis smithii Dalla Torre, 1898: 143 (replacement name).
Braunsia
devriesi
van Achterberg & Long, 2010: 36. (syn. by
Vietnam (
Body bright brownish-yellow; fore wing with dark brown stigmal spot; wing membrane yellowish; vein cu-a of fore wing distinctly postfurcal.
Oriental region. China (Yunnan) new record; Vietnam; Thailand; Malaysia; Indonesia (
We thank Dr. M. Sharkey (University of Kentucky, USA), Dr. D. Yu (Canadian National Collection, Ottawa, Canada), and Dr. S. Stoelb (University of Kentucky, USA) for their assistance during our study of the Chinese Agathidinae. We also thank Dr. H.S. Yin and L. Dai (Shanghai, China) for the loan of specimens in the Shanghai Entomological Museum, Chinese Academy of Sciences to be studied, and Dr. H. Xiao and Dr. H. Liu (Beijing, China) for allowing the specimens in the Institute of Zoology, Chinese Academy of Sciences to be studied. This research was supported by the State Key Program of National Natural Science Foundation of China (31230068), National Natural Science Foundation of China (31401996), the Fundamental Research Funds for the Central Universities, the National Key R&D Program of China (2017YFD0201000), the National Science Foundation for Post-doctoral Scientists of China (2014M560486), the National Science Special Foundation for Post-doctoral Scientists of China (2015T80622) and the Natural Science Fund for Innovative Research Groups (31321063).