Scopesis guttiger ( HOLMGREN , 1857)

Riedel, Matthias, H, Andres & Schmidt, Stefan, 2024, Revision of the Palaearctic species of Scopesis FÖRSTER (Hymenoptera, Ichneumonidae, Ctenopelmatinae), Linzer biologische Beiträge 56 (1), pp. 201-252 : 212-213

Scopesis guttiger ( HOLMGREN, 1857) (figs 5, 24, 39, 58, 78)

Original: Mesoleius guttiger HOLMGREN, 1857: 173 , ♁.

Lectotype: (♁) Hlm /Bhn. (Stockholm), type examined by HORSTMANN.

D e s c r i p t i o n: ♀. Body length 7.5–10.5 mm. Flagellum with 32–42 segments, slender; 1 st flagellar segment 5.0–6.3× as long as wide and 1.8–2.0× as long as 2 nd segment; 2 nd segment 2.7–3.2×, 3 rd segment 2.5–2.7× and preapical segment 1.8–2.0× as long as wide. Temple moderately and roundly narrowed. OED 1.5× ocellar diameter. Face granulated and with superficial punctures. Clypeus slightly convex, not bulging medially, with sparse rather coarse punctures, with some erected setae, laterally with ± distinct flat extensions; apical margin ± concave. Mandibular teeth of equal length. MI 0.4–0.5.

Mesoscutum granulate, with fine superficial punctures, dull. Notaulus impressed in frontal 0.3 of mesoscutum. Mesopleuron granulate, without or with superficial punctures, and weak fine striation dorsally; speculum with microsculpture, shining. Area superomedia usually without lateral carina, rarely with incomplete carination. Area petiolaris usually with obsolete carina medially. Lateral longitudinal carina of propodeum often weak and partly obsolete, pleural carina usually complete. Hind femur 3.9–4.7× as long as wide. Inner apical spur of hind tibia 0.56× as long as hind metatarsus. Vein 2rs-m 0.7– 1.0× as long as vein M between 2rs-m and 2m-cu. Vein 1cu-a postfurcal by 1–3× its width. Nervellus of hind wing vertical or slightly inclivous, intercepted in its apical 0.6– 0.7. 1 st tergite 1.5–1.6× as long as wide, without latero-median carina. 2 nd tergite 1.2– 1.4× as wide as long.

Color: black. Flagellum reddish or ochreous, black basally and/or dorsally. Palps, mandible except teeth and apical 1/2–3/4 of clypeus reddish. Tegula brown. Often 1 st tergite and usually 2 nd to 3 rd or 4 th tergites red (sometimes dark reddish). Coxae, trochanters and trochantelli black; legs otherwise reddish; fore and mid femora usually blackish basally; hind femur black; hind tibia yellowish, infuscate in apical 0.2–0.3; hind tarsus brown or black, hind metatarsus reddish basally. Pterostigma ochreous. Var. ♀. 1 specimen from United Kingdom ( EDI) with very slender 1st tergite, 1.9× as long as wide. ♁. Body length 8–10 mm. Flagellum with 37–41 segments, slender ; 1st flagellar segment

5.4–6.0× as long as wide and 1.8–2.0× as long as 2 nd segment; 2 nd segment 2.8–3.2× and 3 rd segment 2.3–2.9× as long as wide. Temple distinctly roundly narrowed behind eye. OED 1.6× ocellar diameter. MI 0.2–0.3.

Mesopleuron granulate, with sparse punctures, dorsally usually with weak striae. Speculum with microsculpture, shining. Area superomedia usually without carina; area petiolaris sometimes closed medially. Hind femur 3.8–4.2× as long as wide. Vein 2rs-m 0.8– 1.0× as long as vein M between 2rs-m and 2m-cu. 1 st tergite 1.8–2.0× as long as wide, without latero-median carina. 2 nd tergite 1.0–1.2× as wide as long.

Color: black. Flagellum yellow or reddish ventrally, ± brown dorsally. Palps, mandible except teeth, clypeus, face and large anterolateral spot on mesoscutum yellow. Tegula reddish or brown. 2 nd to 3 rd or 4 th tergites usually reddish. Coxae, trochanters and trochantelli black, sometimes fore coxa with reddish spot apically and/or fore and mid trochanters apically and trochantelli yellow. Legs otherwise red-yellow; mid femur basally and hind femur entirely black; hind tibia yellowish, infuscate in apical 0.3; hind tarsus blackish, metatarsus ochreous basally. Pterostigma yellow or ochreous.

D i s t r i b u t i o n: Western Palaearctic, studied material from Austria, Bulgaria, Germany, Italy, Switzerland *, United Kingdom *.