Ambloplisus HEINRICH, 1930

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 : 1485-1486

17. Ambloplisus HEINRICH

Ambloplisus HEINRICH 1930 - Mitt. Zool. Mus. Berlin 15: 551, 552.

Type species: Ambloplisus primus HEINRICH.

Thaumatoteles HOPPER 1938 - Amer. Ent. Soc. Trans. 64: 103.

Type species: Hoplismenus ornatus CRESSON.

Ambloplisus: HEINRICH 1962 - Synopsis Nearct. Ichn. Stenop.: 789-790.

Ambloplisus: HEINRICH 1977 - Ichn. Florida and Neigb. States 9: 276-277.

Type species: Hoplismenus ornatus CRESSON.

D i s t r i b u t i o n: Neotropic and southeast of North America. 4 species.

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

The genus actually differs by two remarkable characters: long sharpened apophysises of both sexes and more or less elongated and bipartite at apex hypopygium of males. Additional characters of the genus are presented by form of a head with very sharply sloped, almost atrophied temples, slender mandibles and by set of carinae of propodeum.

M o r p h o l o g y:

F l a g e l l u m: Of females bristle-shaped, long and slender, flattened ventrally but only slightly widened beyond middle, strongly attenuated and pointed toward apex. Flagellum of males without tyloides and without notches between segments.

H e a d: Head contour from front strongly, almost straightly narrowed downwards with long genae; vertex from lateral slanting almost straightly from level of eyes and ocelli; temples strongly, almost straightly narrowed behind eyes, from side parallel to hind margin of eye; clypeus moderately convex, sharply separated from middle field of face; mandibles very narrow, strongly narrowed behind base, lower tooth slightly moved inside; antennal cavities deep without tooth between antennal fossae; ocellar triangle distinctly elevated.

T h o r a x: Transverse furrow of pronotum not interrupted by keel; pronotal ridge not swollen; pronotal base gradually sinuously curved. Mesonotum moderately convex, longer than width, notauli slightly marked only at base; subalarum moderately thick, not sharpened; sternauli slightly marked only at base; scutellum slightly, but distinctly elevated above postscutellum, dorsally convex, with distinct lateral carinae. Hind margin of metanotum with triangle projections. Propodeum from lateral of broken type, horizontal part in middle approximately equal to length of area posteromedia of females and slightly shorter of males; areae dentiparae apically transformed into long apophysises; area superomedia usually longer than width, approximately parallel sided, apically usually limited by strong transverse carina, but often not separated in front from area basalis; spiracles rather large, longish-oval; costulae and coxal carina absent.

L e g s: Long, moderately slender.

W i n g s: Areolet quadrangular asymmetrical, nervulus interstitial; radius long, slightly curved. Front wing only just shorter than body length.

A b d o m e n Of females from above broad, drop-shaped, flattened dorso-ventrally. Petiolus only just wider than height at base, from lateral with gradual passage to postpetiolus and from above gradually broadened to postpetiolus, with distinct lateral carinae; postpetiolus with slightly marked, irregularly delicate-wrinkled middle field. Gastrocoeli shallow, comparatively small, sometimes not distinct, with distinct thyridia, interval wider than breadth of thyridia; lunulae distinct; tergites 2-3 delicate coriaceous, without distinct punctures, semimatt. Hypopygium of females broad flat, of males more or less elongated and bipartite.