Afrectopius seyrigi (HEINRICH)

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 : 1447-1448

Afrectopius seyrigi (HEINRICH) (Plate 27)

Hoploplatystylus seyrigi HEINRICH 1938 - Mém. Acad. Malgache 25: 49, ♀, Ƌ.

Hoplectopius seyrigi: HEINRICH 1967 - Ichn. Stenop. of Africa 2: 399-400, 432, ♀, Ƌ. Afrectopius seyrigi: TOWNES H. & M. TOWNES 1973 - Mem. Amer. Ent. Inst. 19: 258.

F e m a l e

F l a g e l l u m: Bristle-shaped, extremely long and slender, with 37 segments, not widened and not flattened ventrally beyond middle, with white annulus on segments (5)6-10; basal segments very long, first not less than 6th times longer than wide, all segments longer than wide. Flagellum equal or slightly longer than the front wing and 1,2 times shorter than body length.

H e a d: Head contour from front strongly narrowed downwards, slightly transversal, only 1,3 times wider than length; internal margins of eyes parallel, genae contour slightly sinuous, genae 6,4 times shorter than height of eye; head contour from above transversal, 1,9 times wider than length. Vertex from lateral abrupt just after the ocelli to occipital carina; temples short, from above sharply, almost straightly narrowed behind eyes, from side parallel to hind margin of eye; occipital carina strongly roundly impressed to level of eyes, at the bottom before mandible base weakened and not reach hypostomal carina; maxillary palps extremely elongated, thin; malar space approximately equal to mandible base width; mandibles narrow as characteristically for tribe (strongly narrowed at middle), long, lower tooth moved inside; clypeus strongly convex, transversal, with straight front margin and rounded lateral corners, separated from face by slight impression; clypeal foveae deep, sharp; labrum long rounded; middle field of face well-defined, narrow, equal by width to lateral fields in middle, high elevated above lateral fields; antennal cavities slightly impressed, reach borders of eyes and far not reach front ocellus level, with slightly elevated roundish tubercles laterally and with slight tubercle between antennal fossae; ocelli of normal size, diameter of lateral ocellus equal to distance from ocellus to eye; ocellar triangle practically not elevated. Surface of clypeus densely punctured by big punctures, very slightly shining (interspace between punctures sculpturated), middle field of face wrinkly-punctured, frons above antennal cavities slightly wrinkled.

T h o r a x: Collar of pronotum short, transverse furrow narrow, deep. Mesonotum strongly convex, wider than length; notauli distinct up to middle of mesonotum; surface of mesonotum densely punctured by superficial punctures with slight microsculpture, dull; subalarum slightly elevated, rather narrow, sharpened in hind half; speculum smooth, area of mesopleural fovea deeply and broadly impressed; sternauli at front half distinct; upper part of mesopleurae densely punctured, lower two third longitudinallywrinkled; scutellum high elevated above postscutellum, vertically abrupt to postscutellum, sharply carinated basally and apically, from above rather acutely triangle; horizontal part convex, completely smooth. Hind margin of metanotum with triangular projections. Propodeum from lateral of broken type, short, vertical part strongly slanted; horizontal part shorter or equal to length of area posteromedia in middle; carinae of propodeum developed, with exception of costulae and coxal carina; area superomedia longer than width, rounded in front; apices of areae dentiparae with directed upwards apophysises; spiracles of propodeum small circular, approximately equal by length and breadth, equal 0,3 breadth of area spiraculifera at place of spiracle. Sculpture of propodeum wrinkled, without microsculpture, metapleurae very delicate wrinkled, dull.

L e g s: Long and slender. Claws strongly curved.

W i n g s: Areolet quadrangular, but slightly pointed, almost symmetrical, external veins only just longer than internal; stigma narrow, dark; radius very slightly sinuous, long; nervulus interstitial; ramulus absent; membrane of wing hyaline, veins dark. Length of front wing 1,4 shorter than body length.

A b d o m e n: Abdomen from above narrow, fusiform, second tergite equal by length to breadth at apex, apical tergites not hidden, visible from above; sheath of ovipositor distinctly protrude behind apex of abdomen. Petiolus long slightly flattened at base, from above and from lateral with gradual transform to postpetiolus, lateral carinae weak, but distinct, lateral surface of petiolus wrinkled; postpetiolus behind projecting spiracles with sharp narrowing; middle field slightly expressed, wider than lateral fields, irregularlywrinkled, without microsculpture. Gastrocoeli atrophied, in form of oblique furrow or more smoothed superficial sculpture (remind Ectopius , Linycus ), thyridia weak, indistinct, but visible, far removed from base of second tergite; second tergite sharply narrowed at base, its surface with only just visible shine, coriaceous; lunulae rather large, distinct, slightly elevated, other tergites coriaceous, slightly shining. Hypopygium triangle, compressed from sides, but without fold, with extended rounded apex.

C o l o r a t i o n: Main color of head and abdomen black, of thorax rusty-brown, with reach yellowish-white pattern – wanly-white internal frontal and facial orbits, most part of second tergite, apical part of forth, most part of tergite 5, 6-7 completely, sternite 2 completely and all other sternites with apical stripe.

S i z e: Body length: 9,5; front wing: 7,0; flagellum: 8,0 mm.

M a l e (according to Heinrich)

Flagellum of male with 38 segments, with long row of long and narrow bacilliform tyloides on segments 8-12; with white semiannulus on segments 7-13; scape with white spot ventrally. Margins of face and of clypeus broadly white, sometimes almost completely, with exception of narrow middle stripe; scapus ventrally white.