Ogulnia maculata, Riedel, 2019

Riedel, Matthias, 2019, Contribution to the Ichneumoninae (Hymenoptera, Ichneumonidae) of Nepal, Linzer biologische Beiträge 51 (2), pp. 1119-1162 : 1145

Ogulnia maculata nov.sp. ( figs 41, 43, 44 )

Holotype: ♂ " Nepal, 2900 m Mt. Everest dist. 25.8.- 20.9.1999, leg. V. Gurko" (Linz).

D e s c r i p t i o n: ♂: Body length 14 mm. Flagellum bristle-shaped, with 46 flagellomeres; 1 st flagellomere 2.9x longer than wide. Tyloids on flagellomeres 9-23, linear, longest tyloids c. 0.6x as long as their flagellomeres. Temple long, widened behind eye and narrowed apically, dorsally 1.2x longer than eye. Distance of lateral ocellus to eye 1.2x ocellar diameter. Head with fine punctures, shining. Clypeus almost smooth; apical margin slightly bi-concave, with strong median tooth. Genal carina reaching hypostomal carina close to mandibular base. Head and mesosoma with dense whitish hairs. Notaulus impressed in frontal 1/3 of mesoscutum. Mesoscutum and mesopleuron with coarse dense punctures, shining. Scutellum moderately convex, without lateral carina. Area superomedia rectangular, 1.3x longer than wide; costula absent. Hind femur 4.2x longer than wide. Claws strong, without teeth.

Postpetiolus moderately widened, with scattered punctures, smooth and shining. Gastrocoelus and thyridium smoothly impressed, thyridium c. 0.5x as wide as the interval. 2 nd tergite 1.1x wider than long. 2 nd to 5 th tergites with rather dense punctures, shining.

Colour: Black with rich ivory colour pattern. Ivory are stripes on flagellomeres 16-18, clypeus (except blackish apical tooth), mandible, face, gena, frontal orbit up to vertex, scape ventrally, collare, spot on lateral edge and stripe on upper margin of pronotum, tegula, subtegular ridge, small diffuse spot on lower mesopleuron, two triangular central spots on mesoscutum, praescutellar ridge, scutellum, spot on postscutellum, spot on area spiraculifera frontal to propodeal spiracle, area superomedia (except central blackish spot), apical half of propodeum except area petiolaris, posterolateral spots on postpetiolus, large fronto-lateral spots on 2 nd and 3 rd tergites (on 2 nd tergite confluent medially), lateral margins and narrow apical margins of 3 rd to 6 th tergites, large roundish mark on 7 th tergite, coxae and trochanters mainly, lateral spot on hind coxa and hind trochanter. Femora blackish, with ivory apical spots; tibiae ivory in the basal 2/3, infuscate apically; tarsi ivory except darkened distal tarsomeres. Pterostigma reddish-brown.

♀ unknown.

R e m a r k: This new taxon runs to O. fuscitarsis CAMERON from Darjeeling in the key of Oriental Ogulnia -species ( HEINRICH 1965: 160-161), but can be separated by the different colouration of basal tergites and legs.

Figures

Figs 41-46: Ogulnia maculata nov.sp. ♂: (41) face, (43) propodeum, (44) basal tergites; Ogulnia rufiventris nov.sp. ♂: (42) face, (45) propodeum, (46) basal tergites.