A New Contribution to the Knowledge of the East Palaearctic Ichneumoninae (Hymenoptera, Ichneumonidae) Author Riedel, Matthias text Linzer biologische Beiträge 2021 53 1 171 240 journal article 10.5281/zenodo.13153969 0253-116X 13153969 Ichneumon haladai nov.sp. ( figs 17 , 47 , 57, 69) H o l o t y p e: ( ♀ ) " Mongolia , 90 km N Ulanbatar , Segnezer river, 1450 m , 6-8.VII.2003 , leg. J. Halada" (Linz). P a r a t y p e s: ( 2♀♀ ) labeled as holotype (Linz and coll. Riedel). E t y m o l o g y: This new species is named after Jiři Halada who collected many interesting Ichneumonidae in the East Palaearctic region for the Biologiezentrum Linz. D e s c r i p t i o n: ♀ : Body length 14.0- 14.5 mm . Flagellum almost filiform, with 42 flagellomeres; 1 st flagellomere 1.6× longer than wide, 5 th flagellomere square, widest flagellomeres 1.8× wider than long, preapical flagellomere 0.70× as long as wide. Head covered with brownish hairs. Temple parallel behind eyes and slightly narrowed posteriorly. OED 1.5× and OOD 1.9× ocellar diameter. Frons coarsely rugose-punctate. Face densely punctate, with transverse rugae. Clypeus with rather dense punctures, ± shining; apical margin strait. Gena wide, 1.2× as wide as eye, with scattered punctures ventrally. Mandible with two teeth, lower tooth smaller than upper tooth. MI 1.5; malar space 1.3× as long as 1 st flagellomere. Genal carina complete, reaching hypostomal carina far from mandibular base; both carinae low. Mesosoma covered with brownish hairs. Mesoscutum densely punctate, rugose-punctate medially, ± shining. Mesopleuron densely punctate, striate in posterior half. Metapleuron coarsely rugose-punctate; juxtacoxal carina present. Scutellum slightly elevated, 1.2× wider than long, with fine scattered punctures, without lateral carina. Propodeum rugose. Area superomedia almost hexagonal, 1.2× wider than long; anterior transversal carina absent. Hind coxa densely punctate, with dense brown hairs, but without defined scopa. Hind femur stout, 3.3× longer than wide, with dense punctures. Tarsi slightly widened, 3 rd mid tarsomere 1.4× longer than wide. Metasoma stout, strongly oxypygous. Postpetiolus distinctly widened; lateral field striate, 0.60× as wide as median field; median field finely and regularly striate. 2 nd tergite 0.67× as long as wide. Gastrocoelus moderately impressed, with longitudinal ridges. Thyridium almost transverse, 0.67× as wide as the interval. 2 nd and 3 rd tergites finely and densely rugose-punctate, 2 nd tergite with fine longitudinal rugae between thyridia. Ovipositor sheath shortly extending behind metasomal apex by length of 7 th tergite. Color: black. Flagellomeres 10-14 with ivory stripes. Mandible centrally, narrow stripe on frontal orbit (widened opposite lateral ocellus), collar and sometimes hind edge of pronotum, sometimes tegula and prescutellar carina reddish. Scutellum with large central yellow spot. 2 nd and 3 rd tergites red, with ± distinct black apical margins. 6 th and 7 th tergites with rather narrow ivory median stripes. Legs mainly black; fore and mid tibiae red frontally; hind tibia reddish, infuscate in apical third; hind tarsus black, sometimes partly dark red. Wings slightly brownish infuscate; pterostigma yellowish. ♁ unknown. R e m a r k: This new species resembles Ichneumon insidiosus WESMAEL , but can be differentiated by a stouter metasoma, wider hexagonal area supermedia, wider temple, stouter hind femur and narrower ivory spots on 6 th and 7 th tergites. Also, the East Palaearctic subspecies Ichneumon insidiosus malaisei ROMAN has a largely red hind femur. In the key of Siberian Ichneumon ( RIEDEL 2018 ) , the new species runs to Ichneumon obnixus HEINRICH , but differs by its wider temple, black flagellum with ivory stripe and basally red 3 rd tergite.