Ectopius rubellus (GMELIN)

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 : 1444-1446

Ectopius rubellus (GMELIN) (Plate 26)

Ichneumon rubellus GMELIN 1790 - Linné: Syst. Nat. 12 (1): 2704.

Ectopius rubellus: WESMAEL 1859 - Mém. Cour. Acad. Sci. Belgique 8: 14, Ƌ.

F e m a l e

F l a g e l l u m: Slender, with 32 segments, beyond middle scarcely widened (practically not widened) and not flattened ventrally, gradually attenuated toward apex, without white annulus, or only with its traces on one-two segments (12(13)) dorsally; basal segment from side 2,3 times longer than width at apex, segment 18 square from lateral. Flagellum 1,1 times longer than the front wing and 1,3 times shorter than body length.

H e a d: Head contour from front roundish, slightly transversal, 1,2 times wider than height, roundly slightly narrowed downwards; genae from front 5,3 times sorter than height of eye; head contour from above transversal, 1,7 times wider than length. Vertex from lateral roundly curved to occipital carina; temples behind eyes from above roundly narrowed behind eyes, long, equal to longitudinal diameter of eye at middle, from side slightly narrowed toward mandible base; occipital carina not high, from above very slightly impressed toward hind ocelli, far not reach level of eyes and hind ocelli, almost straight; hypostomal carina meeting with occipital carina before mandible base; malar space approximately equal to mandible base width; mandibles with form character to Platylabini , gradually narrowed from base to apex; clypeus convex, transversal, 2,5 times wider than length, with rounded front margin, distinctly separated from face; clypeal foveae narrow, deep; labrum not protrude from under clypeus; middle field of face slightly elevated above lateral fields, triangular, 1,4 times narrower than lateral fields in middle; antennal cavities small, slightly impressed, reach borders of eyes and far not reach front ocellus level, laterally with tubercles and distinct tooth between antennal fossae; ocelli large, high elevated, but ocellar triangle slightly differentiated. Surface of clypeus and lateral fields with sparse superficial punctures, shining, middle field laterally wrinkly-punctured.

T h o r a x: Collar of pronotum short, transverse furrow shallow. Mesonotum moderately convex, some wider than length; notauli marked only in front third; surface of mesonotum with sparse delicate punctures shining, without microsculpture; subalarum thin, sharpened; speculum punctured, shining; area of mesopleural fovea very broadly impressed; sternauli distinctly impressed in front third; mesopleurae without sharp bend at lower part; surface of mesopleurae at upper third with delicate superficial punctures, strongly shining, at other parts rather roughly wrinkly-punctured, without microsculpture, shining; scutellum moderately elevated, from above triangle, laterally carinated; its horizontal part convex with sparse delicate, superficial punctures, shining. Hind margin of metanotum with triangle projections opposite lateral longitudinal carinae. Propodeum from lateral triangle, strongly slanting backwards, horizontal part 2,5 times shorter than length of area posteromedia in middle; all fields of propodeum distinctly separated by carinae; area superomedia sharply transversal, hexagonal, narrowed in front, of females 2,5-3 times wider than length in middle, costulae behind middle of area superomedia; area dentipara at apex without tooth; spiracles of propodeum small, circular, 1,2-1,3 longer than width, equal 0,3 breadth of field at place of spiracle. Surface of propodeum shining, wrinkled, metapleurae with sparse superficial punctures.

L e g s: Moderately slender; claws thin, long.

W i n g s: Areolet pentagonal, narrow in front, asymmetrical (external vein of base longer than internal and external vein of apex shorter than internal); stigma broad, light; radius very slightly curved, almost straight, short; radial cell short and broad; ramulus only just marked, nervulus interstitial or slightly postfurcal, strongly inclival; membrane of wing hyaline; veins of wings at base light (yellow). Front wing 1,2 times shorter than body length.

A b d o m e n: Abdomen from above longish-oval, slightly drop-shaped, in considerably part almost parallel sided; second tergite slightly transversal, almost equal of length to breadth at apex; apical tergites not hidden and distinctly visible from above; sheath of ovipositor only just visible protrude behind apex of abdomen. First tergite from lateral practically straight, petiolus distinctly flattened at base, lateral carinae of petiolus sharp, interspace between them superficially wrinkled; petiolus from above gradually broadened to postpetiolus; middle field of postpetiolus almost not expressed. Gastrocoeli in form of longitudinal oblique groove, thyridia very small, also longitudinal or not expressed; spiracles of second tergite behinds its middle, lunulae distinct; abdomen shining, surface of second and third tergites densely punctured by superficial punctures. Hypopygium from lateral triangle, strongly pointed, from below with longitudinal fold.

C o l o r a t i o n: Body brown-black, legs rusty-red, surface of genae with dully white spot.

S i z e: Body length: 6,0; front wing: 5,1; flagellum: 4,7 mm.

M a l e

Flagellum of males some more stout, without white pattern and with narrow weak tyloides on segments 11-16; area superomedia extremely sharply transversal, more than 3 times wider than length in middle. Head with white marks at apex of internal orbits.