Ichneumon scopator, Riedel, 2018

Riedel, Matthias, 2018, Contribution to the Siberian species of Ichneumon LINNAEUS (Hymenoptera, Ichneumonidae, Ichneumoninae), Linzer biologische Beiträge 50 (2), pp. 1509-1562 : 1529-1530

Ichneumon scopator nov.sp. ( figs 17 , 38 , 61 , 80 )

M a t e r i a l e x a m i n e d Holotype: ♀ " Russia, S Siberia, Hakassia reg., Sallyghem- Taiga mt. reg, 2400 m, 10 VII 2005, leg. Osipov " (coll. Riedel).

D e s c r i p t i o n: Body length 15 mm. Antenna rather stout and almost filiform, with 45 flagellomeres; 1 st flagellomere c.1.65x longer than wide, c.6 th flagellomere square, widest flagellomeres c.1.3x wider than long; preapical flagellomere 0.6x as long as wide. Temple slightly widened behind eye, and slightly narrowed apically. OOD 1.5. Frons with coarse dense punctures, granulate. Face densely punctate; clypeus with rather dense punctures; both areas smooth between punctures. Gena wide, c.1.4x wider than eye, with scattered punctures in ventral 1/2. Malar space c.1.35x longer than width of mandibular base and 1.4x longer than 1 st flagellomere. Genal carina complete, hypostomal carina narrow.

Mesosoma covered with brownish hairs. Mesoscutum densely punctate, smooth between punctures. Mesopleuron coarsely and densely punctate, partly rugose; metapleuron coarsely rugose-punctate; coxal carina present. Scutellum slightly elevated, with rather dense fine punctures. Area superomedia c.1.2x wider than long; costula absent. Area petiolaris without lateral border. Mid coxa with short scopa apically; hind coxa densely punctate and with strong and large scopa (0.5x coxal length). Hind femur stout, c.3.0x longer than wide, with scattered punctures in ventral 1/2. Hind tibia with c.6 denticular spurs apico-externally. All tarsomeres distinctly widened, 3 rd mid tarsomere c.1.25x longer than wide.

Metasoma strongly oxypygous, hypopygium short. Postpetiolus strongly widened, medi- an field with fine aciculation and some fine punctures. 2 nd tergite c.0.7x as long as wide. Gastrocoelus impressed, with fine ridges; thyridium almost transverse, c.0.9x as wide as the interval. 2 nd and 3 rd tergites with fine dense punctures and fine longitudinal rugosity medially. Ovipositor sheath slightly extending behind metasomal apex.

Color: Black. Scapus partly and flagellomeres 1-15 red, following flagellomeres black. Narrow frontal orbit, collare, hind edge of pronotum and tegula red. Scutellum yellowish-red. 2 nd and 3 rd tergites mainly red, darkened medially; sides of 4 th tergite reddish basally. 6 th and 7 th tergites with narrow ivory stripes. Coxae and trochanters black, legs otherwise completely reddish. Wings with yellowish tint, pterostigma reddish.

T a x o n o m i c a l r e m a r k This new species belongs to group E2 sensu HILPERT (1992) and is closely related to I. rufolateralis nov.sp. It differs mainly by its larger size, stouter hind femur and distinct scopae on mid and hind coxae.

Figures

Figs 17-18: Habitus of: (17) Ichneumon scopator nov.sp.; (18) I. thyridiator nov.sp.

Figs 33-38: Head from dorsal of: (33) Ichneumon paravafer nov.sp.; (34) I. paravulnerator nov.sp.; (35) I. pseudemancipatus nov.sp.; (36) I. rufolateralis nov.sp.; (37) I. sayanicus nov.sp.; (38) I. scopator nov.sp.

Figs 61-62: Scutellum and propodeum of: (61) Ichneumon scopator nov.sp.; (62) I. thyridiator nov.sp. Figs 63-64: Postpetiolus and 2nd tergite of: (63) Ichneumon altaicurtulus nov.sp.; (64) I. berlovi nov.sp.

Figs 77-80: Postpetiolus and 2nd tergite of: (77) Ichneumon pseudemancipatus nov.sp.; (78) I. rufolateralis nov.sp.; (79) I. sayanicus nov.sp.; (80) I. scopator nov.sp.