Pseudoplatylabus uniguttatus (GRAVENHORST)

M, Alexander, 2015, Ichneumon flies of the tribe Joppocryptini of Palaearctic. Description of new genus Londokia nov. gen. and two new species L. kasparyani nov. sp. and L. leleji nov. sp. (Hymenoptera, Ichneumonidae, Ichneumoninae), Linzer biologische Beiträge 47 (2), pp. 1865-1884 : 1871-1873

Pseudoplatylabus uniguttatus (GRAVENHORST)

Hoplismenus uniguttatus GRAVENHORST 1829 - Ichn. Eur. 2: 423,.

Pseudoplatylabus uniguttatus HEINRICH 1936 - Polskie Pismo Entomol. 13 (1934): 25. Pseudoplatylabus violentus: RASNITSYN 1981 - Opr. Faun. SSSR 3 (3): 562-563,.

M a t e r i a l e x a m i n e d: Byelorussia, Khojniki , Polesskij zap.: ur. Dron'ki: 51°44’N- 29°52’E, Alnetum urticosum, Malaise trap: 06.07.198 9, 1 ; 03.08.198 9, 1; Piceetum pleuroziosum, Malaise trap, 26.10.199 0, 1 ; ur. Orevichi , 51°35’N- 29°50’E, personal plot, Malaise trap, 04.08.199 2, 2, A. Tereshkin leg.

F e m a l e

F l a g e l l u m: Slender, bristle-shaped, only just widened, with 36 segments, first segment moderately long, 3,9 times longer than width at apex, rust-colored with more darkened apex and with white semiannulus on segments 8-12, flattened ventrally but not widened behind middle (all segments longer than width). Flagellum long, 1,2 times longer than front wing and only 1,1 times shorter than body length.

H e a d: Head contour from front strongly narrowed downwards, transversal, 1,2 times wider than height; eyes large, temples from front visible only in 1/8 of lower part of an eye; genae long, from front 3,6 times shorter than height of an eye; head from above enough thick, transversal, 1,7 times wider than length in middle. Vertex from lateral behind hind ocelli roundly slanting down to occipital carina; temples long, 1,3 times longer than longitudinal diameter of an eye in the middle, from above roundly narrowed behind eyes, from side broadened downwards; occipital carina from above deeply almost angularly impressed but not reach level of eyes and hind ocelli, sharp all round, meeting with hypostomal carina not reach of mandible base; hypostomal carina not visible from lateral, length of abscissula 2,8 lesser than mandible base width; sulcus genalis broadly impressed; mandibles narrow, sickle-shaped, upper tooth long, lower one only just developed, but distinct, sharp, strongly moved inside in comparison with upper tooth, not visible from front; clypeus broad, convex at base and strongly impressed and flattened at apex, with strong impression along round front margin and with raised roundly oblique lateral margins, separated from face by slight broad impression; clypeal foveae big, deep, elongated; labrum not protrude from clypeus; middle field of face only just elevated above lateral fields and not separated by distinct impressions, broad, 1,3 times broadly then lateral fields in middle; antennal cavities not great, very deep, laterally reach borders of eyes, but far not reach level of front ocellus, lateral tubercles slightly expressed, tooth between antennal fossae only just marked; front margins of antennal fossae slightly elevated above face surface; ocelli of normal size, diameter of lateral ocellus 1,2 times less than distance from ocellus to an eye; ocellar triangle only just elevated. Upper part of clypeus punctured by big connivent smoothed punctures more rare to apex; surface of face roughly wrinkly-punctured; antennal cavities with distinct transversal wrinkling; frons roughly wrinkly-punctured by irregular punctures; vertex and temples smoothly wrinklypunctured; surface of face, frons, vertex and upper part of temples with granulated sculpture, dully-shining.

T h o r a x: Collar of pronotum long with straight front margin, transverse furrow of pronotum broad, shallow, interrupted by low broad keel; pronotal base gradually uniformly curved with sharp apical angle; epomiae strong, pronotal ridge not thickened; surface of pronotum densely punctured by big elongated punctures in central part and densely wrinkly-punctured by more small punctures in upper one. Mesonotum moderately convex, only just longer than breadth; notauli only just marked in front third (middle field slightly elevated); surface very densely punctured, granulated between punctures; prepectus behind front coxae superficially wrikly-punctured, slightly shining; prepectal carina apically not reach hind margin of pronotum, ventrally thin and high; subalarum blunted, some thickened and not so tall as at P. violentus ; speculum shining with sparse punctures; mesopleural fovea small, deep, round with broad impression around; lower part of mesopleurae (mesosternum) not separated angularly with gradual bend; sternauli in a form of distinct impressions up to middle of mesopleurae; surface of mesopleurae densely punctured to wrinkly-punctured in upper and lower parts, shining; scutellum high elevated above postscutellum, bordered laterally up to apex by high carinae, horizontal part of scutellum convex with rare smoothed punctures, with slight shine, vertical surface and postscutellum with sharp longitudinal wrinkles. Hind margin of metanotum with triangle projections opposite lateral longitudinal carinae. Propodeum from lateral of broken type, but with convex horizontal part, its horizontal part 1,4 times shorter than area posteromedia in middle; all carinae of propodeum distinct but weak; basal area short, convex, deep; area superomedia hexagonal, broad, narrowed from costulae more strongly forward and slightly backwards, with equal length to breadth between costulae, costulae in middle of area superomedia; areae dentiparae at apices without denticles only with only just visible broadening of carina closing area dentipara on the apex; spiracles elongated, 2 times longer than breadth. Horizontal and vertical surfaces of propodeum densely punctured to wrinkly-punctured, with slight shine; metapleurae densely punctured, shining.

L e g s: Very long and slender; hind coxae of female without traces of scopa with dense fine puncturation; claws smooth, small with strongly curved apex almost at a right angle.

W i n g s: Areolet pentagonal, symmetrical with very narrow base; radius slightly sinuous, almost right, slightly curved only at apex; stigma narrow, pale brown; nervulus slightly postfurcal; ramulus distinct; veins of both of wings dark, apical veins of front wing distinct, apical veins of hind wings weak; membrane of wings hyaline. Length of front wing 1,5 times shorter than body length.

A b d o m e n: Of female from above narrow, fusiform, with strongly projecting sheath of ovipositor, sharply oxypygous; second tergite from above 1,1 times shorter than width at apex; sheath of ovipositor from above far protrude behind apex of abdomen, more than length of tergites 6-7. First tergite from lateral with gradual bend of petiolus to postpetiolus, almost stright; petiolus bordered by carinae only ventrally, lateral surface of petiolus not sculpturated, shining; petiolus narrow, from above gradually broadened to postpetiolus; middle field of postpetiolus distinctly elevated, not bordered, considerably wider than lateral fields, smooth, sometime with impression, lateral fields with big smoothed punctures, surface of postpetiolus shining. Gastrocoeli deeply impressed, short and slightly oblique; thyridia distinct, 2,5 times wider than interval between them; lunulae distinct, of middle size, situated behind middle of 2nd tergite; surface of tergites 2-4 densely punctured by small superficial punctures, shining, puncturation of tergite 5 very weak, tergites 6-7 only just shagreened. All sternites with fold, considerably unsclerotized. Hypopygium with fold.

C o l o r a t i o n: Head and thorax black; white: frontal orbits, collar and hind angles of pronotum, spot on subalarum, base of front wing and scutellum from above; 1-5th tergites of abdomen red, 6-7th darkened, tergite 6 with wide white stripe at apex, tergite 7 entirely white; Legs predominately red, coxae and trochanteres black, trochanteres 1 of front legs with white apex.

S i z e: Body length – 7,5-8,2; front wing – 5,2-6,5; flagellum – 6,0- 7,5 mm.