Ichneumon oehlkei, 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 : 199-200

publication ID

https://doi.org/ 10.5281/zenodo.13153969

persistent identifier

https://treatment.plazi.org/id/351687FF-2907-A400-FF6B-FAC909BCFBCC

treatment provided by

Felipe

scientific name

Ichneumon oehlkei
status

sp. nov.

Ichneumon oehlkei nov.sp. ( figs 51 View Figs 47-54 , 64 View Figs 61-64 , 76 View Figs 73-76 )

H o l o t y p e: (♀) "Asia [ Tajikistan], Dushanbe, Ansor-Pass, 3400 m, 8.VII.1987, J. Oehlke leg." (SDEI).

E t y m o l o g y: The name of this new species is dedicated to the entomologist J. Oehlke who collected and generously donated this species to the SDEI.

D e s c r i p t i o n: ♀: Body length 12.5 mm. Flagellum almost filiform, with 44 flagellomeres; 1 st flagellomere 2.1× longer than wide, c. 16 th flagellomere square, widest flagellomeres about square; preapical flagellomere 0.67× as long as wide. Head covered with short brownish hairs. Temple moderately and roundly narrowed behind eyes, dorsally 0.7× as long as eye. OED 1.8× and OOD 1.8× ocellar diameter. Frons punctate. Face densely punctate. Clypeus almost flat, with scattered punctures. Gena 1.2× as wide as eye, with scattered punctures ventrally. Mandible with blunt upper tooth, lower tooth very small and only indicated as small indentation. MI 1.1; malar space 0.85× 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 and strongly shining. Mesopleuron densely punctate, rugose-punctate in posterior half. Metapleuron coarsely and densely rugose-punctate; juxtacoxal carina present. Scutellum slightly elevated, slightly wider than long, with fine scattered punctures, with lateral carina in anterior 0.3. Propodeum rugose. Area superomedia slightly trapezoid, 1.1× longer than wide; anterior transversal carina absent. Hind coxa with rather dense punctures in apical half, with fine dense punctures and weak brownish scopa apico-ventrally. Hind femur slender, 4.1× longer than wide, with scattered punctures in ventral half. Tarsi slender, 3 rd mid tarsomere 1.6x longer than wide.

Metasoma oxypygous, hypopygium short. Postpetiolus moderately widened; lateral field coarsely rugose, 0.65× as wide as median field; median field with c. 15 rather coarse striae. 2 nd tergite 0.80× as long as wide. Gastrocoelus distinctly impressed, with strong ridges. Thyridium almost transverse, 0.85× as wide as the interval. 2 nd and 3 rd tergites densely rugose-punctate, anterior 2/3 of 2 nd tergite striate medially. Ovipositor sheath extending behind metasomal apex by 0.7× length of 7 th tergite.

Color: black. Flagellomeres 6-15 yellowish. Mandible medially red. Head, mesosoma and metasoma entirely black. Coxa and trochanters black; legs including trochantelli otherwise red; hind tibia black in apical 0.15; hind tarsus black. Wings slightly infuscate; pterostigma chestnut-red.

♁ unknown.

R e m a r k: This new species resembles Ichneumon melanosomus WESMAEL , but differs by its entirely black metasoma, slenderer hind femur with scattered ventral punctures and the modified form of mandible.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Ichneumonidae

Genus

Ichneumon

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