Ichneumon paravulnerator, Riedel, 2018

Riedel, Matthias, 2018, Contribution to the Siberian species of Ichneumon LINNAEUS (Hymenoptera, Ichneumonidae, Ichneumoninae), Linzer biologische Beiträge 50 (2), pp. 1509-1562 : 1525-1526

Ichneumon paravulnerator nov.sp. ( figs 13 , 34 , 57 , 76 )

M a t e r i a l e x a m i n e d: Holotype: ♀ " 1-5 vii 2003, 2000 m, SW Tannu-Ola Mt reg., Sogly vill., SW Tuwa reg., S Siberia, leg. Vastchenko " (coll. Riedel)

D e s c r i p t i o n: Body length 11 mm. Antenna moderately lanceolate, with 37 flagellomeres; 1 st flagellomere 1.8x longer than wide, c.8 th flagellomere square, widest flagellomeres c.0.75x as long as wide; preapical flagellomere 0.9x as long as wide. Temple rather long, slightly narrowed behind eye. OOD 1.5. Frons coarsely and transversely rugose-punctate. Face coarsely and densely punctate, with fine granulation. Clypeus with dense punctures, smooth between punctures. Gena 1.2x as wide as eye, with dense punctures and fine striation in ventral 1/2. Malar space 1.25x as long as width of mandibular base and 1.15x as long as 1 st flagellomere. Genal carina complete, not interrupted ventrally. Hypostomal carina slightly elevated.

Mesosoma covered with brownish hairs. Mesoscutum coarsely and densely punctate, with fine granulation but shining. Mesopleuron and metapleuron coarsely rugosepunctate; coxal carina present. Scutellum moderately elevated, about as long as wide, with rather dense punctures becoming finer apically. Area superomedia slightly hexagonal, 1.2x wider than long; costula absent. Area petiolaris without lateral border. Hind coxa densely punctate, without scopa. Hind femur 3.4x longer than wide, densely punctate. Hind tibia with c.8. denticular spurs apico-externally. 3 rd mid tarsomere c.1.5x longer than wide.

Metasoma strongly oxypygous, hypopygium short. Postpetiolus strongly widened, medi- an field with fine and regular aciculation. 2 nd tergite very wide, 0.63x as long as wide. Gastrocoelus impressed, with several ridges; thyridium large, transverse, c.1.5x wider than the interval. 2 nd to 4 th tergites with dense punctures, granulate and ± opaque. Ovipositor sheath slightly extending beyond metasomal apex.

Color: Black. Scapus, pedicel and flagellomeres 1-8 red, flagellomeres 9-12 more yellowish-red. Mandible shortly red centrally. Collare, tegula and scutellum red. 2 nd and 3 rd tergites red, 3 rd tergite with black band in apical third. 6 th and 7 th tergites with roundish ivory spots medially. Coxae and trochanters black; legs otherwise red. Wings with slightly yellowish tint, pterostigma yellow.

Males unknown.

T a x o n o m i c a l r e m a r k The species belongs to group C sensu HILPERT (1992) and runs to Ichneumon norvegicus HILPERT in his key. It differs by less widened median flagellomeres, reddish scapus, pedicel, scutellum and 2 nd tergite and an ivory spot on 6 th tergite.

Figures

Figs 13-16: Habitus of: (13) Ichneumon paravulnerator nov.sp.; (14) I. pseudemancipatus nov.sp.; (15) I. rufolateralis nov.sp.; (16) I. sayanicus 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 57-60: Scutellum and propodeum of: (57) Ichneumon paravulnerator nov.sp.; (58) I. pseudemancipatus nov.sp.; (59) I. rufolateralis nov.sp.; (60) I. sayanicus nov.sp.

Figs 73-76: Postpetiolus and 2nd tergite of: (73) Ichneumon nigrostigmaticus nov.sp.; (74) I. orientopodius nov.sp.; (75) I. paravafer nov.sp.; (76) I. paravulnerator nov.sp.