Rhyssolabus BERTHOUMIEU, 1896

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 : 1483-1484

16. Rhyssolabus BERTHOUMIEU

Platymischus TISCHBEIN 1868 - Ent. Ztg. Stettin. 29: 257, 9.

Type species: Platymischus bassicus TISCHBEIN.

Rhyssolabus BERTHOUMIEU 1896 - Ann. Soc. Ent. France 65: 402.

Platymischus TISCHBEIN 1868; preocc. by WESTWOOD 1832 [= Rhyssolabus ]

Rhyssolabus: ANENTO & SELFA 1996 - Boln. Asoc. esp. Ent. 20 (3-4): 41-46.

D i s t r i b u t i o n: Palaearctic.

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

For the genus the following is typical: roughly wrinkled sculpture of all parts of a body, big pentagonal areolet, notauli sharp in front third of mesonotum, scutellum carinated to middle, roughly wrinkled propodeum with cellular area superomedia and strong teeth and big longish-oval spiracles, deep gastrocoeli with distinct thyridia of second tergite of abdomen.

M o r p h o l o g y:

F l a g e l l u m: Bristle-shaped, slightly widened and flattened ventrally beyond middle. Flagellum equal by length to front wing and shorter than body length.

H e a d: Head contour from front almost straightly narrowed downwards, temples from above strongly roundly narrowed backwards. Occipital carina from lateral parallel to hind margin of eye, meeting with hypostomal carina not reaching mandible base; mandibles with form character to tribe; clypeus convex with straight front margin and expressed corners, sharply separated from middle field of face by narrow impression; middle field of face high elevated above lateral fields and clypeus, narrower than lateral fields; antennal cavities moderately impressed with tubercle between antennal fossae; ocellar triangle expressed, but slightly elevated. Surface of head roughly wrinkly-punctured, shining.

T h o r a x: Transverse furrow of pronotum not interrupted by keel; pronotal ridge not swollen; pronotal base sinuous, gradually curved. Mesonotum moderately convex longer than width, notauli distinct in front third; surface of mesonotum densely punctured, shining; subalarum moderately thin, not sharpened; sternauli distinct up to middle of mesopleurae; scutellum high, gradually slanting to postscutellum almost from base, laterally carinated up to middle. Hind margin of metanotum with projections. Propodeum from lateral shortened and slanted, horizontal part of propodeum shorter than area posteromedia in middle; carinae of propodeum developed, with exception of costulae and coxal carina; area superomedia longer than width, laterally and from front limited by sinuous carinae, high elevated above lateral fields, its surface cellular; area dentipara with strong tooth at apex; spiracles large, longish-oval. Horizontal part of propodeum and metapleurae roughly cellular-wrinkled.

L e g s: Moderately slender.

W i n g s: Areolet pentagonal, symmetrical, with wide base; nervulus postfurcal. Front wing shorter than body length.

A b d o m e n Longish-oval, second tergite transverse; apex of ovipositor sheath slightly protrude. First tergite from lateral with angular transform to postpetiolus, sharply carinated laterally; from above petiolus very strongly broadened to postpetiolus; middle field of postpetiolus slightly elevated above lateral fields, not carinated, roughly wrinkled. Gastrocoeli deep and short, thyridia distinct, transverse, parallel to front margin of tergite, some wider than interval; lunulae large, distinct; interval and front half of second tergite roughly-wrinkled, other surface with very dense punctures with microsculpture in most part, other tergites with superficial punctures, slightly shining. Hypopygium from below without longitudinal fold.

C o l o r a t i o n: Body black; legs in most part red.

S i z e: 5mm.