Ichneumon rufofacialis, 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 : 202

publication ID	https://doi.org/ 10.5281/zenodo.13153969
persistent identifier	https://treatment.plazi.org/id/351687FF-2904-A402-FF6B-FEB90888F9A6
treatment provided by	Felipe
scientific name	Ichneumon rufofacialis
status	sp. nov.

Treatment

Ichneumon rufofacialis nov.sp. ( figs 23 View Figs 23-26 , 53 View Figs 47-54 , 56 View Figs 55-56 , 66 View Figs 65-68 , 78 View Figs 77-80 )

H o l o t y p e: (♀) " China, Shaanxi, QuiLing Shan, 107.56 E 33.45 N, autoroute km 93, S Zhomzhi 108 km SE Xian, Mountain forest, 1650 m, 1./ 2.IX.1995, leg. Wrase" (ZSM).

D e s c r i p t i o n: ♀. Body length 11 mm. Flagellum almost filiform, with 37 flagellomeres; 1 st flagellomere 1.7× longer than wide, 8 th flagellomere square, widest flagellomeres c. 1.25× wider than long; preapical flagellomere 0.75× as long as wide. Head covered with brownish hairs. Temple moderately and roundly narrowed behind eyes, dorsally 0.85× as long as eye. OED 1.5× and OOD 1.4× ocellar diameter. Vertex and occiput coarsely and transversely rugose-punctate. Frons and face rugose-punctate. Clypeus with rather dense punctures, smooth between punctures. Gena wide, 1.1× as wide as eye, with dense and partly rugose punctures in ventral half. Mandible with two teeth, lower tooth smaller than upper tooth. MI 1.1; malar space 1.1× as long as 1 st flagellomere. Genal carina complete, reaching hypostomal carina far from mandibular base; hypostomal carina slightly elevated.

Mesosoma covered with brownish hairs. Notaulus shortly impressed at anterior margin of mesoscutum. Mesoscutum finely and densely rugose-punctate, dull. Meso- and metapleuron coarsely and densely rugose-punctate, mesopleuron partly striate-punctate; juxtacoxal carina present. Scutellum slightly elevated, slightly wider than long, with coarse scattered punctures, without lateral carina. Propodeum coarsely rugose. Area superomedia rectangular, 1.4× longer than wide; anterior transversal carina indistinct. Hind coxa densely punctate, without scopa. Hind femur 3.6× longer than wide, finely granulate, with scattered punctures basally and in ventral third. Tarsi slender, 3 rd mid tarsomere 1.7× longer than wide.

Metasoma strongly oxypygous, hypopygium short. Postpetiolus moderately widened, lateral fields densely punctate, 0.6× as wide as median field; median field striate and punctate. 2 nd tergite 0.90× as long as wide. Gastrocoelus impressed, with c. 7 ridges. Thyridium small, almost transverse, 0.6× as wide as the interval. 2 nd and 3 rd tergites finely and densely rugose-punctate, 2 nd tergite finely striate between thyridia. Ovipositor sheath extending behind metasomal apex by length of 7 th tergite.

Color: black. Stripes on flagellomeres 8-14, collar, upper margin of pronotum, subtegular ridge and large median spots on 5 th to 7 th tergites ivory. Mandible except teeth, clypeus, face, malar space, ventral gena and tegula reddish. 2 nd and 3 rd tergites chestnut-red. Coxae and trochanters black; hind trochantellus reddish; all femora black, narrowly reddish basally and apcially; tibiae and tarsi reddish; hind tibia black in apical 0.25. Wings almost hyaline, pterostigma reddish.

♁ unknown.

R e m a r k: In the key of Siberian Ichneumon species ( RIEDEL 2018), this new species runs to Ichneumon paravafer RIEDEL. It differs from I. paravafer by the black postpetiolus and hind femur, entirely red 3 rd tergite and the red color pattern on head.