Rhadinodontoides rufiventris, Riedel, 2021

Riedel, Matthias, 2021, A New Contribution to the Knowledge of the East Palaearctic Ichneumoninae (Hymenoptera, Ichneumonidae), Linzer biologische Beiträge 53 (1), pp. 171-240 : 208-209

Rhadinodontoides rufiventris nov.sp. ( figs 82 -86)

H o l o t y p e: (♀) " Kirghizia [ Kyrgyzstan] west, Terek-Sai, 71,1°-41,5°, 7.6.1995, M. Mučka lgt." (Linz).

D e s c r i p t i o n: Body length 9.0 mm. Flagellum with 30 flagellomeres; 1 st flagellomere 3.1× and 2 nd flagellomere 2.7× longer than wide; widest flagellomere 1.2× wider than long. Temple moderately and roundly narrowed behind eyes. OED 1.0× and OOD 1.2× ocellar diameter. Frons and face densely rugose-punctate, dull. Clypeus rather large, moderately convex, densely punctate; apical margin sharp, rounded. MI 1.0. Mandible slender and pointed apically, lower tooth not visible. Gena densely punctate. Genal carina slightly bent inwards ventrally, reaching hypostomal carina away from mandibular base; hypostomal carina slightly elevated.

Mesosoma covered with grey hairs. Epomia present; side of pronotum punctate dorsally and with curved striae ventrally. Mesoscutum densely punctate and granulate, slightly shining. Notaulus impressed in frontal ¼ of mesoscutum. Mesopleuron coarsely rugose-punctate; speculum punctate, partly smooth. Metapleuron rugose-punctate; juxtacoxal carina distinct. Scutellum moderately elevated, 1.2× wider than long, densely punctate, with lateral carina in basal half. Area basalis slightly protruding forward medially, without distinct median tubercle. Area superomedia pentagonal, slightly wider than long; anterior transverse carina absent. Hind coxa densely punctate, with scopa apico-ventrally. Hind femur densely punctate, 4.1× longer than wide; hind tibia without denticular spurs externally. Claws with rather long teeth in basal half to 2/3. Areolet pentagonal, frontal distance between veins 2rs-m and 3rs-m 2× their diameter; vein 2m-cu slightly distad its middle. Vein 1cu-a postfurcal by 2×its width. Nervellus of hind wing slightly reclivous, intercepted in apical 0.7.

Metasoma strongly oxypygous. 2 nd to 4 th sternites with median folds. Postpetiolus moderately widened, without distinct dorsal carina, but median field ± elevated, c. 2× wider than lateral fields, with longitudinal rugae and striae. 2 nd tergite 0.9× as long as wide. Gastrocoelus distinctly impressed, with irregular ridges. Thyridium slightly oblique, very large, 2.0× wider than the interval. 2 nd and 3 rd tergites densely rugose-punctate and granulate; 2 nd tergite with irregular rugae in its basal half. Following tergites with superficial punctures, ± shining. Ovipositor sheath reaching behind metasomal apex by length of 3 rd hind tarsomere.

Color: black. Stripes on flagellomeres 9-11 ivory. Head and mesosoma entirely black. Metasoma reddish, ovipositor sheath black. Coxae and trochanters black; legs otherwise including trochantelli reddish; hind tarsus black. Wings brownish infuscate; pterostigma ochreous, with darker margins.

♁ unknown.

D i s t r i b u t i o n: Kyrgyzstan.

Figures

Figs 81-82: Face from frontal of ♀♀: (81) Monontos kasparyani nov.sp., (82) Rhadinodontoides rufiventris nov.sp. Figs 83-86: Rhadinodontoides rufiventris nov.sp. ♀: (83) head from dorsal, (84) pectinate hind claw, (85) propodeum from dorsal, (86) basal tergites from dorsal.