Ichneumon paravafer, 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

Ichneumon paravafer nov.sp. ( figs 12 , 33 , 56 , 75 )

M a t e r i a l e x a m i n e d: Holotype: ♀ "S Siberia, Hakassia reg., Sallyghen-Taiga mt. reg., 2400 m, 5 vii 2005, leg. Osipov " (coll Riedel).

D e s c r i p t i o n: Body length 13 mm. Antenna strongly lanceolate, with 40 flagellomeres; 1 st flagellomere 1.5x longer than wide, 4 th flagellomere square, widest flagellomeres c.0.5x as long as wide; preapical flagellomere 0.67x as long as wide. Temple moderately narrowed apically, slightly rounded. OOD 1.6. Frons densely rugosepunctate. Face coarsely punctate and finely granulate; clypeus with rather dense punctures, smooth between punctures. Gena 1.3x as wide as eye, with scattered punctures in ventral 1/2. Malar space 1.1x as long as width of mandibular base and 1.15x as long as 1 st flagellomere. Genal carina complete, not interrupted ventrally. Hypostomal carina narrow.

Mesosoma covered with brownish hairs. Mesoscutum densely punctate; median field finely granulate, lateral field with rather dense punctures centrally, smooth between punctures. Mesopleuron very densely punctate; metapleuron coarsely rugose-punctate; coxal carina present. Scutellum slightly elevated, slightly wider than long, with scattered punctures. Area superomedia slightly hexagonal, about as long as wide; costula absent. Area petiolaris without lateral carina. Hind coxa densely punctate and granulate, partly with less dense punctures externally, ± opaque, without scopa. Hind femur 3.6x longer than wide, with scattered punctures in ventral 1/2. Hind tibia and tarsus missing. Tarsomeres slender, 3 rd mid tarsomere 1.6x longer than wide.

Metasoma semi-amblypygous; hypopygium moderately elongate, about as long as the distance of its apical margin to metasomal apex. Postpetiolus strongly widened, median field 1.6x wider than the lateral one, with regular aciculation; lateral field aciculate. 2 nd tergite 0.76x as long as wide. Gastrocoelus impressed, with fine ridges; thyridium slightly oblique, about as wide as the interval. 2 nd and 3 rd tergites densely punctate and granulate, ± opaque; following tergites strongly shining; 2 nd tergite with fine longitudinal rugosity medially. Ovipositor sheath slightly extending behind metasomal apex.

Color: Black. Rings on flagellomeres 8-12, scutellum and equally sized spots on tergite 5-7 ivory. Collare, tegula, postpetiolus and 2 nd tergite completely red, 3 rd tergite with narrow reddish lateral margin. Coxae and trochanters black; legs otherwise red (hind tibia and tarsus missing). Wings with brownish tint, pterostigma yellowish-red.

Males unknown.

T a x o n o m i c a l r e m a r k This species belongs to the group G 2.1 sensu HILPERT (1992) and runs to I. vafer meridionalis HEINRICH in his key. It differs by the red hind femur with scattered punctures in ventral ½ and the blackish 3 rd tergite.

Figures

Figs 9-12: Habitus of: (9) Ichneumon mesonotator nov.sp.; (10) I. nigrostigmaticus nov.sp.; (11) I. orientopodius nov.sp.; (12) I. paravafer 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 53-56: Scutellum and propodeum of: (53) Ichneumon mesonotator nov.sp.; (54) I. nigrostigmaticus nov.sp.; (55) I. orientopodius nov.sp.; (56) I. paravafer 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.