Platybirmania HEINRICH, 1974

A. M, 2009, Illustrated key to the tribes of subfamilia Ichneumoninae and genera of the tribe Platylabini of world fauna (Hymenoptera, Ichneumonidae), Linzer biologische Beiträge 41 (2), pp. 1317-1608 : 1491-1492

19. Platybirmania HEINRICH

Platybirmania HEINRICH 1974 - Ann. Zool. Wars. 32 (8): 191-192.

Type species: Platybirmania acutinota HEINRICH.

D i s t r i b u t i o n: Oriental Region ( Burma).

I n t r o d u c t i o n:

It is very isolated genus, like Abzaria CAMERON. Clypeus is flat, broadly rounded at apex like clypeus of Clypeolabus HEINRICH in form of rounded arch from one base of mandible to another. Mandibles are very broad at base, in middle from above strongly curved almost at right angle, immediately from base uniformly narrowed. Middle field of face is only just expressed. Occipital carina is broadened at the base of mandibles. Pronotal ridge is strongly convex (swollen). Mesonotum behind base of front wings is with vertical triangle projection. Scutellum is high and completely carinated including hind border. Areolet of front wings is petiolate. All carinae of the propodeum are developed, with exception of carina between basal area and area superomedia. Costula is situated beyond middle of area superomedia. Area dentipara at apex is with tooth. Gastrocoeli are deep, thyridia sharp, considerably wider than the interval. The interval between thyridia is with longitudinal impression as at Dentilabus HEINRICH. Apical tergites are smooth and shining, slightly narrowed, approximately cylindrical. The length of apical tergites is almost equal to length of second and third tergites taken together.

M o r p h o l o g y:

F l a g e l l u m: Of female long and slender, not widened beyond middle, bristle-shaped, with white semiannulus. Flagellum of males with narrow tyloides.

H e a d: Head contour from front roundly narrowed downwards, from above transversal and triangle from lateral. Temples from above convex, roundly narrowed, from lateral slightly widened downwards from middle, with weak impression at mandible base; occipital carina from above almost straight, low, meeting with hypostomal carina on mandible base; mandibles very wide at base, in middle strongly curved almost at right angle, immediately from base uniformly narrowed, lower tooth small, slightly moved inside; clypeus flat, widely gradually rounded in form of arch, only just visible separated from face; middle field of face only just expressed; antennal cavities of moderate size, deep, with small tooth between antennal fossae; ocellar triangle high elevated. Surface of clypeus and face densely superficially punctured, without microsculpture.

T h o r a x: Transverse furrow of pronotum not interrupted by keel; pronotal ridge swollen; pronotal base smooth, gradually slightly sinuously curved. Mesonotum strongly convex, of equal length and breadth, notauli practically not developed; external margins of mesonotum between tegulae and scuto-scutellar groove with projecting triangle processes; surface of mesonotum rather densely punctured, shining; subalarum moderately thick, not sharpened; sternauli absent; scutellum high elevated above postscutellum, sharply divided on horizontal and vertical parts, carinated laterally and at apex by high carinae; foveae of postscutellum merged. Hind margin of metanotum with triangular projections. Propodeum short; horizontal part considerably shorter than vertical; carinae of propodeum developed, with exception of carina between basal area and area superomedia; area superomedia hexagonal, of equal length and breadth, costulae behind middle; apices of areae dentiparae with short teeth; spiracles of moderate size, longish-oval.

L e g s: Quite long and slender. W i n g s: Areolet quadrangular, petiolate; radius practically straight; nervulus interstitial. Front wing shorter than body length.

A b d o m e n Elongated, from middle of tergite 3 uniformly narrowed backwards, second tergite transversal, apex of abdomen compressed from sides. First tergite at base only just wider than height, from lateral with gradual, but distinct bend; lateral carinae sharp; from above strongly and sharply broadened to postpetiolus; middle field of postpetiolus high elevated and distinctly carinated; postpetiolus wrinkly-punctured, slightly shining. Gastrocoeli deep and broad; thyridia distinct, closed to base of tergite with narrow interval; interval with longitudinal impression almost to apex of second tergite; lunulae large, sharp; tergites 2-4 of abdomen densely and roughly punctured, other tergites smooth, shining.

C o l o r a t i o n: Black with reach yellow coloration on head, thorax and abdomen.

S i z e: 10mm.