Corresponding author: Mingyi Tian (
Academic editor: B. Guéorguiev
The
Tian M, Deuve T (2016) Definition of the
Indo-Burma is one of the 25 biodiversity hotspots in the world for conservation priorities (
The majority of orthogoniine species recorded in tropical Asia belongs to the prominent genus
The
All specimens for this study are dry and mounted materials. Dissection and observation of the specimens were made using a WILD M32 binocular microscope. Detailed descriptions are provided for the new species, while only diagnostic character states are given for the known species. Digital photographs were taken and processed in the same as in
Body length was measured from apex of right mandibles to apex of elytra; body width = width of elytra.
Abbreviations of measurements used in the text are as followings:
head length (from apex of right mandible to base of vertex)
head width (maximum distance across head, including eyes)
length of pronotum (measured from front to basal margins, through midline)
width of pronotum (greatest width of pronotum)
length of elytra (measured from base to apex of elytra, through suture)
width of elytra (greatest transverse distance across both elytra)
Abbreviations of collections mentioned in the text are as following
Collection of David Wrase, Berlin
Collection of Ingo Brunk, Dresden
Agricultural Research for Development, Montpellier
Institut royal des Sciences naturelle de Belgique, Brussels
Naturalhistorisches
Protarsi of
Distribution of the
1 | Body large sized and depressed, polish, smooth and glabrous, ventrite VII in male not emarginate at apical margin, aedeagus not exposed | |
– | Combination of other differences |
|
2 | Prosternal process unbordered at apex |
|
– | Prosternal process bordered at apex |
|
3 | Mentum with a median tooth, abdominal ventrite VII bearing three pairs of setae |
|
– | Mentum edentate, abdominal ventrite VII bearing two pairs of setae |
|
4 | Head slender, labrum deeply emarginate at front, eyes less convex |
|
– | Head stouter, labrum shallowly emarginate at front, eyes more convex |
|
5 | Pronotum and elytra entirely reddish brown; scutellum widely obtuse; lateral expanded margins of pronotum distinctly reflexed |
|
– | At least disc of pronotum light dark brown; scutellum narrowly obtuse; lateral expanded margins of pronotum either flat or slightly reflexed |
|
6 | Elytral interval 3 with only two setiferous pores, middle one wanted |
|
– | Elytral interval 3 with three setiferous pores |
|
7 | Body brown or yellowish brown |
|
– | Body black or dark brown |
|
8 | Middle coxae setose medially, apical inner angle of elytra obtuse, not denticulate at tip |
|
– | Middle coxae asetose medially, apical inner angle of elytra nearly rectangular, distinctly denticulate at tip |
|
9 | Body more depressed, hind 3rd tarsomere longer than 4th |
|
– | Body less depressed, hind 3rd tarsomere as long as 4th |
|
10 | Apex of elytron deeply sinuate, inner angle obtuse |
|
– | Apex of elytron shallowly sinuate, inner angle nearly rectangular |
|
15.0–17.0 mm; width: 5.5–6.0 mm. Habitus as in Fig.
Habitus
Body elongate, strongly shiny, smooth and glabrous; head dark brown, pronotum, elytra and legs red brown, impunctate, microsculptural engraved meshes isodiametric. Head slightly longer than wide,
Male: Unknown.
It is probably close to
1 female, the holotype, “Hainan: Ledong Xian: Jianfengling, 15. VI. 1983, Gu Maobin leg.”, in
China (Hainan Island) (Fig.
19.0–20.0 mm; width: 6.5–7.0 mm (measurements in the original description were not correct). Habitus as in Fig.
Head and pronotum black, antennae and elytra dark brown, slender and very shinny; body smooth and glabrous, head and pronotum impunctate, elytral odd intervals with a few, sparse punctures which are irregularly arranged; head intricately wrinkled; microsculptural engraved meshes densely isodiametric, faint on head and pronotum, clear on elytra. Head slightly longer than wide,
Differs from other congeners by its deeply concaved labrum and broadly obtuse inner apex of elytron.
1 male, the holotype: “British Bootang, L. Durel, 1898”, in
Bhutan and Sikkim (Fig.
Male, label “Coll. I.R.Sc.N.B./ Vietnam: Tam Dao NP, 25-28. VII, 2010, light trap, Leg. J. Constant & P. Limbourg; I.G. 31.668”, in
1 female, “Coll. I.R.Sc.N.B./ Vietnam: Cuc Phuong, Day coll. NG/IG, 31.668, 11-18. VIII, 2010, Leg J. Constant & P. Limbourg”, in
A medium-sized species, light dark brown in general, with rather flat and slender body which is smooth and glabrous, and asetose midcoxae and well bordered prosternal process.
Length: 15.0–16.0 mm; width: 6.0–6.5 mm. Habitus as in Fig.
Body elongate, strongly shiny, smooth and glabrous. Head and disc of pronotum dark brown; elytra, lateral expanded margins of pronotum, mouthparts, antennae, legs and ventral surface reddish brown; whole body dark brown in several specimens. Surface impunctate, head moderately wrinkled on frons, smooth on vertex and pronotum. Microsculptural engraved meshes isodiametric on elytra, indistinct on head and pronotum.
Head longer than wide,
Pronotum strongly transverse,
Elytra elongate, and rather flat;
Legs slender, fore tibiae expanded at apex, with outer angle strongly protrude, outer margin serrate; hind femora rather slender, with three posterior setae; middle coxae setose, hind coxae smooth and glabrous; middle tibiae quite straight, slightly expanded at apex; hind tibiae slightly expanded at apex, apical spurs long and sharp, the 3rd hind tarsomere slightly longer than the 4th which bilobed at apex; all tarsal claws weakly pectinate.
Prosternal process well bordered at apex. Abdominal ventrite VII of male complete; ventrite VII with two pairs of setae on either side of apical margin in both male and female.
Male genitalia: Stout, dorsal opening wide and long, base dilated, gently bent ventrally towards apex, which almost pointed in lateral view; in dorsal view, not contracted before apical lamella, which short and broad, as long as wide, surface granulated.
It is allied to
In honor of P. Limbourg (Brussels), one of the holotype collectors.
Northern Vietnam (Fig.
Male, “Laos-NE: Houa Phan Province,
A species similar to but larger than the above one, with also a rather flat and slender body, but having an unbordered prosternal process, a quadrisetose clypeus and setose midcoxae.
Length: 19.0 mm; width: 6.8 mm. Habitus as in Fig.
Body elongate, strongly shiny, smooth and glabrous. Head and disc of pronotum dark brown; elytra, lateral expanded margins of pronotum, mouthparts, antennae, legs and ventral surface reddish brown. Head and pronotum impunctate, elytral odd intervals with a few punctures; head moderately wrinkled; pronotum and elytra largely smooth. Microsculptural engraved meshes isodiametric on elytra, rather transverse on pronotum, indistinct on head.
Head longer than wide,
Pronotum strongly transverse,
Elytra elongate-ovate,
Legs rather slender, hind femora rather slender, with three posterior setae; fore tibiae expanded at apex, with outer angle strongly protrude, outer margin serrate; middle coxae setose, hind coxae smooth and glabrous; middle tibiae quite straight, slightly expanded at apex; hind tibiae slightly expanded at apex, apical spurs long and sharp, the 3rd hind tarsomere slightly longer than the 4th which bilobed at apex; all tarsal claws weakly pectinate.
Prosternal process unbordered at apex.
Male genitalia (Figs
Female: Unknown.
It is very similar to
Referred to its polished body.
Laos (Fig.
Male, label: “Laos: Province de Khammouane, rivière Hin Boun, Ban Nathan, campe de l’Agame,
1 male & 3 females, in
A medium-sized and stout species, with a shiny, smooth, and glabrous body which is brownish in general, and having an edentate mentum, a well bordered prosternal process and setose midcoxae.
Length: 15.0–16.5 mm; width: 6.0–6.5 mm. Habitus as in Fig.
Habitus
Middle sized, stout, strongly shiny, smooth and glabrous. Head black; palps, pronotum, elytra, the 1st–3rd antennomeres, legs and ventral surface brownish; labrum, clypeus, the 4th to 11th antennomeres dark brown. Head and pronotum impunctate, elytral odd intervals with a few fine and feeble punctures. Microsculptural engraved meshes isodiametric on elytra, indistinct on head and pronotum.
Head as long as wide, eyes moderate and prominent, frons and vertex convex, frontal impressions large and deep, extending posteriorly to the level of anterior supraorbital pores; clypeus bisetose, basal portion decorated by three short, longitudinal furrows which crossing base of clypeus and joining frontal impressions on either sides, and against frons medially; labrum sex-setose, moderately emarginate at apical margin; palps stout, subcylindrical, the 3rd maxillary palpomere slightly shorter than the 4th, glabrous on the 4th, the 3rd with three short setae at apex; the 2nd labial palpomere slightly longer than the 3rd, bisetose on inner margin, with several additional setae at subapex and apex, the 3rd labial palpomere with a few setae at basal part; ligula small, bisetose at apex; mentum edentate; each of mentum and submentum bisetose, setae subequal in length, palpiger asetose. Antennae moderately long, extending over base of elytra; pubescent from basal 1/3 of the 4th antennomere, where evidently expanded; the 3rd antennomere almost as long as the 4th, the 1st with a long seta at subapex.
Pronotum strongly transverse,
Elytra elongate,
Legs moderately long, hind femora moderately expanded, with three posterior setae in male and four or five in female; fore tibiae expanded at apex, with outer angle shortly protruded, outer margin sub-serrate; middle coxae glabrous in holotype, but with one to three setae in median portion in other specimens, hind coxae smooth and glabrous; middle tibiae not modified in male, quite straight, serrate, gradually expanded towards apex; hind tibiae slightly expanded at apex, apical spurs very long and sharp, the 1st hind tarsomere distinctly longer than the 2nd, the 3rd as long as the 4th which deeply and symmetrically bilobed at apex; all tarsal claws weakly pectinate.
Prosternal process bordered at apex. Abdominal ventrite VII of male complete, with two pairs of setae on either side of apical margin in both male and female.
Male genitalia (Fig.
It is probably allied to
The name of this new species is in honor of the collector, Henri-Pierre Aberlenc (
Laos (Fig.
Male, “S. Vietnam, 40 km NW An Khe, Buon Luoi, 620-750 m”, “
1 male, ibid. in
A fairly large species, with a yellowish and slender body which is less depressed, but strongly shiny, smooth and glabrous, having a bordered prosternal process, an edentate mentum and asetose midcoxae.
Length: 18.5 mm; width: 7.0 mm. Habitus as in Fig.
Body elongate, strongly shiny, smooth and glabrous. Yellowish to brown, except head which dark brown. Head and pronotum impunctate, elytral odd intervals with a few punctures. Microsculptural engraved meshes isodiametric on head and elytra, transverse on pronotum.
Head longer than wide,
Pronotum strongly transverse,
Elytra elongate-ovate,
Legs rather slender, fore tibiae slightly expanded at apex, outer angle distinctly protruding and sharp, outer margin somewhat sub-serrate; middle and hind coxae smooth and glabrous; middle tibiae quite straight, slightly expanded at apex; hind tibiae hardly expanded at apex, apical spurs long and sharp; the 3rd hind tarsomere as long as the 4th which deeply bilobed at apex; claws weakly pectinate.
Prosternal process faintly bordered at apex.
Male genitalia (Figs
Female: Unknown.
Probably close to
“
Southern Vietnam (Fig.
17.0 mm; width: 6.5 mm. Habitus as in Fig.
Dark brown to black, body rather slender and depressed, smooth and glabrous, microsculptural engraved meshes isodiametric on head, pronotum and elytra. Head longer than wide,
Differs from other members of this species group by its labrum straight at front, and 3rd elytral interval with only two setiferous pores.
The type series only: 1 male, holotype, “Birmah Momeit”, “Doherty” “Frey Coll. 1905.100”, “60827” and “
Myanmar (Fig.
19.0 mm; width: 7.0 mm. Habitus as in Fig.
Dark brown, shiny, glabrous and smooth, but faint striate on head and pronotum; microsculptural engraved meshes isodiametric. Head slightly longer than wide,
Female: Unknown.
It is similar to
1 male, the holotype, “CHINE-Yunnan, Tongbiguan,
China (Yunnan).
Male, “NE India: Meghalaya, W. Garo Hills, Nokrek National Park, ca 1000 m”, “
1 female, ibid, in
A dark brown or black species, having a elongate body, a deeply emarginate labrum, an edentate mentum, a well bordered prosternal process, setose midcoxae and a 6-setose ventrite VII.
Length: 18.5–19.0 mm; width: 6.5 mm. Habitus as in Fig.
Habitus
Body elongate, shiny. Head and disc of pronotum black to dark brown; elytra, lateral expanded margins of pronotum, mouthparts, antennae, legs and ventral surface reddish dark brown. Female darker than male. Head and pronotum impunctate, elytral odd intervals with a few punctures; head densely and moderately wrinkled and intricate; pronotum transversally striate, elytra smooth. Microsculptural engraved meshes isodiametric on elytra, rather transverse on head and pronotum.
Head longer than wide,
Pronotum strongly transverse,
Elytra elongate ovate,
Apex of right elytron
Legs rather slender, fore tibiae slightly expanded at apex, outer angle distinctly protrude, outer margin somewhat sub-serrate; middle and hind coxae smooth and glabrous; middle tibiae quite straight, slightly expanded at apex; hind tibiae hardly expanded at apex, apical spurs long and sharp, the 3rd hind tarsomere much longer than the 4th which deeply emarginate at apex (lobes half as long as the joint); claws weakly pectinate.
Prosternal process unbordered at apex. Ventrite VII with three pairs of setae on either side of apical margin in both sexes.
Male genitalia (Figs
Male genitalia (right lateral view and dorsal view for apical lamella)
Male genitalia (right lateral view and dorsal view for apical lamella)
Male genitalia (right lateral view and dorsal view for apical lamella)
Separable from other congeners by sex-setose on ventrite VII, deeply emarginate labrum at apical margin and dentate mentum.
Referred to the type locality.
India.
Male, “Myanmar (Magway State), nr. Kyeto Pass between Padaukaing-Ngabyin, 850 m,
5 females, ibid. in
A black (including lateral expanded pronotal margins) and stout species, having nearly rectangular inner apical angles of elytra, an edentate mentum, a well bordered prosernal process and setose midcoxae.
Length: 18.5–19.0 mm; width: 6.5 mm. Habitus as in Fig.
Body elongate, smooth and shiny. Body black, except palps dark brown. Head and pronotum impunctate, elytral odd intervals with small and sparse punctures; head and pronotum obscurely striate. Microsculptural engraved meshes isodiametric on head and elytra, transverse on pronotum.
Head longer than wide,
Pronotum strongly transverse,
Elytra elongate ovate,
Legs rather slender, fore tibiae slightly expanded at apex, apical margin sinuate, outer angle distinctly protrude, outer margin sub-serrate; middle coxae setose, hind ones smooth and glabrous; middle tibiae quite straight, slightly expanded at apex; hind tibiae slightly expanded at apex, apical spurs long and sharp, the 3rd hind tarsomere longer than the 4th which deeply emarginate at apex (lobes one third as long as the segment); claws strongly pectinate.
Prosternal process well bordered at apex. Ventrite VII quadrisetose in both male and female;
Male genitalia (Figs
Recognized by its black body and nearly rectangular inner apical angles of elytra.
This new species is named in honor of David W. Wrase (Berlin).
Myanmar.
We are very grateful to A. Taghavian (