Alomyini (FOERSTER)

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 : 1327-1328

Tribe Alomyini (FOERSTER)

Alomyoidae FOERSTER 1869 - Verh. Preuss. Rhein. West. 25: 135-221.

Type genus: Alomya PANZER.

Alomyinae : PERKINS 1959 - Roy. Ent. Soc. London 7, 2 (aii): 8, 208.

Alomyini : RASNITSYN 1981 - Opr. Faun. SSSR 3 (3): 507, 512.

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 The tribe is connected by intermediary form Pseudalomya TELENGA with Phaeogenini . Basic key character of tribe, distinguishing it from Phaeogenini , is morphology of head. Female’s postgenae and genae are closed above mouthparts so that the foramen occipitalis is closed. Males’ postgenae and genae are not closed, but have similar morphology and tendency in this direction. Pneusticae of propodeum, in contrast to Phaeogenini are roundish, but not circular.

M o r p h o l o g y:

F l a g e l l u m: Of females short, filiform, not widened and flattened beyond middle, all segments except last segment transversal (Alomya), or several middle segments slightly elongated ( Pseudalomya ). Flagellum of males bristle-shaped with elongate segments and without tyloides.

H e a d: Head contour from the front and from above scarcely transversal with very long slightly narrowed temples. Of female postgenae and genae connected above mouthparts, so, that foramen magnum closed up, not so at males (in contrast of males). Mandibles flat, spade-shape, with two tooth, and lower large size than upper (Alomya) or without teeth ( Pseudalomya ); front surface of head with differentiated fields and clypeus; antennal cavities divided by keel (Alomya) or tooth and with high flat horn at the middle ( Pseudalomya ).

T h o r a x: Pronotum long with sharp fovea or slight impression on border of mesonotum. Mesonotum longer than wide, or equal to width in middle, with or without notauli; axillary tongue developed, slightly or sharply expressed; sternauli absent or slightly impressed at base; scutellum flat, gradually sloping to postscutellum, not carinated laterally; postscutellum with basal foveae ( Pseudalomya ) or without them (Alomya). Hind margin of metanotum with large projections. Propodeum long with reduced areas; only apical transverse carina expressed or marked more or less distinctly; spiracles of propodeum oval.

L e g s: Strong, with strongly thickened front femora; trochanter II of front legs developed ( Pseudalomya ) or absent (Alomya). Legs of males more thin and slender.

W i n g s: Areolet pentagonal with very wide base.

A b d o m e n:Fromabove longish-oval from blunted to pointed at apex, amblypygous. First tergite from above uniformly broadening from base to apex; only ventrolateral carina of petiolus slightly expressed; spiracles moved from hind margin of tergite or on distance equal interval between spiracles ( Pseudalomya ), or situated almost in middle of tergite (Alomya). Gastrocoeli and thyridia not developed. Front sternites with fold; hypopygium from absolutely flat (Alomya) to slightly compressed from sides ( Pseudalomya ), without fold.

S i z e: Species of middle length.

C o l o r a t i o n: Combination of black and red or light-red.