Virgichneumon monostagon (GRAVENHORST, 1820)

Virgichneumon monostagon (GRAVENHORST, 1820) View in CoL (figs 12, 34, 54, 71, 78, 89, 95)

Lectotype: (♁) (Wroclaw), studied and comb. nov. by RASNITSYN (1981).

D e s c r i p t i o n: ♀. Body length 11.5-13.0 mm. Flagellum with 45-47 segments, moderately lanceolate; 1 st flagellar segment 1.8-1.9× as long as wide, 6 th segment square; widest segments 1.4-1.5× as wide as long, tip ± pointed (fig. 78). Temple strongly and almost linearly narrowed behind eye (fig. 12). OED 1.1-1.3× and OOD 1.3-1.4× ocellar diameter. Frons coarsely punctate. Gena 1.0-1.1× as wide as eye, with sparse punctures ventrally (fig. 89). Clypeus with sparse punctures. MI 0.8.

Mesoscutum coarsely punctate, with microsculpture but ± shining. Mesopleuron coarsely punctate, rugose posteriorly; sometimes mesopleuron and metapleuron with striated punctures. Scutellum wider than long, with sparse punctures and lateral carina in basal 0.2. Area superomedia heart-shaped, about as long as wide; at or posterior to its middle with costula (fig. 34). Hind coxa with dense punctures, punctures sometimes sparse apico-ventrally, without scopa. Hind femur densely punctate, 3.6-3.9× as long as wide. External surface of hind tibia with several (5-7) denticular spines. Areolet pentagonal, frontal distance between veins 2rs-m and 3rs-m 3-4× their width; vein 2m-cu reaching distad its middle. Vein 1cu-a postfurcal by 1-2× its width.

Postpetiole with distinct latero-median carina; median field elevated and with longitudinally striated punctation. Gastrocoelus ± rectangularly impressed. Thyridium slightly oblique, 0.5× as wide as interval between thyridia. 2 nd tergite 1.3-1.4× as wide as long. 2 nd and 3 rd tergites coarsely and densely rugose-punctate (fig. 54). Ovipositor sheath extending beyond metasomal apex by 0.5-1.0× of 7 th tergite length.

Color: black. Mandible reddish centrally. Flagellar segments 8-14 dorsally, small spot of frontal orbit opposite to lateral ocellus, scutellum, and dorsal spots on 6 th and 7 th tergites ivory (6 th tergite sometimes entirely black). Legs black, fore tibia yellowish frontally OR if femora, tibiae and tarsi red, then hind tibia infuscate in apical 0.2-0.3 and hind tarsus black. Pterostigma blackish. ♁. Body length 11.5-15.0 mm. Flagellum with 43-47 segments; 1st flagellar segment

2.2× as long as wide. Tyloids on flagellar segments 5/6-15/16, oval, situated basad, maximally almost as long as their segments. OED 1.0× ocellar diameter. MI 0.2. Scutellum with lateral carina in basal 0.5-0.7. Area superomedia as long as or wider than long, hexagonal; costula reaching posterior to its middle. Fore metatarsus with strong apical tooth (fig. 95). Hind femur 3.5-4.1× as long as wide. Lateral field of postpetiole 0.8× as wide as median field, the latter with longitudinally striated punctures. Thyridium 0.7× as wide as interval between thyridia. 2 nd tergite 0.9-1.2× as long as wide. 2 nd to 4 th tergites with rugose punctures; 2 nd tergite with more or less extended longitudinal rugae medially, dull.

Color: black. Labial palps in part, clypeus laterally, wide facial orbit, narrow frontal orbit (fig. 71), often collar and spot on subtegular ridge, often apical half or apical spots on scutellum ivory. Legs usually black; fore and mid femora and tibiae ± reddish or yellowish frontally. Sometimes legs except black coxae and trochanters red; hind tibia infuscate in apical 0.2 and hind tarsus black. Pterostigma dark brownish or blackish.

Host: Spilosoma lubricipeda (LINNAEUS, 1758) (Lep., Erebidae ) (ZSM).

S t u d i e d m a t e r i a l: from Armenia * (coll. Riedel), Austria, France, Germany, Italy, Sweden, Switzerland.