Bureschias HEINRICH, 1936

A. M, 2011, Illustrated key to the genera of the subtribe Amblytelina of Palaearctic (Hymenoptera, Ichneumonidae, Ichneumoninae, Ichneumonini), Linzer biologische Beiträge 43 (1), pp. 597-711 : 644

6. Bureschias HEINRICH

Bureschias HEINRICH 1936 - Mitt. Königl. Naturwiss. Inst. Sofia 9: 82.

Type species: Ichneumon subcylindricus GRAVENHORST (= Bureschias balcanicus HEINRICH ).

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 representatives of genus a peculiar morphology of a head simultaneously with amblypygous abdomen of females are characteristic. Profile of head from side is angular. Surface of face and clypeus forms right angle with surface of frons. Long, broad clypeus is sharply impressed, so that middle and lateral fields of face are overhanging above it. From lateral, clypeus is practically parallel to longitudinal axis of a body. Middle field of face upwardly gradually transforms to strong, pointed interantennal tubercle (process). Habitually the genus is resemble to Ichneumon LINNAEUS and by some morphological peculiarities to Chasmias ASHMEAD. By morphology of abdomen and mandibles it is similar to Spilichneumon THOMSON , parasitizing on cryptophagous larvae of Noctuidae .

M o r p h o l o g y:

F l a g e l l u m: Bristle-shaped, short, stout with sharply differentiated segments, with or without white annulus. Flagellum of males with narrow tyloides.

H e a d: Head contour from front not narrowed downwards with very short genae; from side with right angle between facial and frontal surfaces; temples from above behind eyes swollen; mandibles broad, slightly swollen in middle with two equal tooth; clypeus flat, extremely sharply impressed relatively face; middle and lateral fields of face overhanging above clypeus; middle field of face dorsally transforms to massive pointed projection between antennal fossae.

T h o r a x: Mesonotum slightly convex (flattened), only just longer than width; notauli only just marked at base; axillary tongue slightly developed; subalarum narrow; mesopleurae at the bottom with gradual bend; sternauli distinct up to middle of mesopleurae; scutellum slightly elevated, practically flat, laterally not carinated. Hind margin of metanotum with projections. Propodeum from lateral angle-shaped; carinae except costulae and coxal carina distinct; area superomedia quadrangular, elongated; areae dentiparae at apex without teeth; spiracles long.

L e g s: Strong. Hind coxae of females without scopa.

W i n g s: Areolet big, pentagonal with wide base; membrane of wing hyaline.

A b d o m e n: Of females amblypygous, fusiform from above, with noticeable constriction between second and third tergites. Middle field of postpetiolus sharply longitudinally striated, slightly elevated. Gastrocoeli small, only just impressed, thyridia only just marked; anterior tergites densely punctured, second tergite medially longitudinally superficially wrinkly-punctured, third one punctured, apical tergites smooth. Hypopygium of females from the bottom not extended at apex, not completely overlap slit of ovipositor.

C o l o r a t i o n: Body black, abdomen red in middle. Scutellum and spots on apical tergites of abdomen white or yellow.

S i z e: Body length 9-14 mm.