Ichneumon rufomesonator, Riedel, 2021
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publication ID |
https://doi.org/ 10.5281/zenodo.13153969 |
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persistent identifier |
https://treatment.plazi.org/id/351687FF-293B-A43C-FF6B-FDD40884FEEE |
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treatment provided by |
Felipe |
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scientific name |
Ichneumon rufomesonator |
| status |
sp. nov. |
Ichneumon rufomesonator nov.sp. ( figs 54 View Figs 47-54 , 67 View Figs 65-68 , 79 View Figs 77-80 )
H o l o t y p e: (♀) "NW Mongolei: Uvs-Aimak: Chavchiraa-Gebirge, 30 km WSW Ulangam, Univ. Halle" "Gelbschale, 2150 m Wald-Bergsteppe, 30.7.- 2.8.1977 " (SDEI).
D e s c r i p t i o n: ♀: Body length 8.1 mm. Flagellum slightly lanceolate, with 30 flagellomeres; 1 st flagellomere 1.25× longer than wide, 2 nd flagellomere square, widest flagellomeres 1.8× wider than long; preapical flagellomere 0.60× as long as wide. Temple slightly and roundly narrowed behind eyes, dorsally 1.0× as long as eye. OED 1.7× ocellar diameter. Frons coarsely rugose-punctate. Face densely punctate. Clypeus slightly convex, with scattered punctures apically. Gena 1.5× as wide as eye, with very scattered punctures ventrally. Mandible with two teeth, lower tooth smaller than upper tooth. MI 2.0; malar space 1.6× as long as 1 st flagellomere. Genal carina complete, reaching hypostomal carina far from mandibular base; hypostomal carina slightly elevated.
Mesosoma covered with grey hairs. Mesoscutum with dense punctures, ± shining. Mesopleuron with dense punctures, rugose-punctate posteriorly. Metapleuron rugose-punctate; juxtacoxal carina present. Scutellum almost flat, slightly wider than long, with rather dense punctures, without lateral carina. Propodeum finely rugose. Area superomedia rectangular, 1.2× wider than long, apical carina weak; anterior transverse carina absent. Hind coxa densely punctate, with denser hairs apico-ventrally, but without clearly defined scopa. Hind femur stout, 3.0× longer than wide, with dense punctures. Tarsi moderately widened, 3 rd mid tarsomere 1.25× longer than wide.
Metasoma moderately (artificially?) compressed apically, strongly oxypygous; hypopygium short. Postpetiolus distinctly widened; lateral field punctate, 0.6× as wide as median field; median field with superficial aciculation. 2 nd tergite wide, 0.65× as long as wide. Gastrocoelus slightly impressed, with fine ridges. Thyridium oblique, 1.6× wider than the interval. 2 nd and 3 rd tergites densely punctate, rugose-punctate medially; 4 th tergite densely punctate. Ovipositor sheath extending behind metasomal apex by half length of 7 th tergite.
Color: black. Flagellomeres 1-6 reddish, flagellomeres 7-11 reddish-yellow, following flagellomeres black. Head except medially red mandible entirely black. Collar, mesoscutum, scutellum and postscutellum red. Tegula reddish-yellow. 1 st to 3 rd tergites entirely and 4 th tergite basally red; 7 th tergite with narrow ivory stripe medially. Coxae and trochanters black; legs including trochantelli otherwise entirely red. Wings hyaline; pterostigma yellowish.
♁ unknown. R e m a r k: This new species belongs to the Ichneumon group I sensu HILPERT (1992). In the key for Siberian Ichneumon species ( RIEDEL 2018), it runs to the variable Ichneumon stigmatorius ZETTERSTEDT , but differs by its very short basal flagellomeres, black head, entirely reddish femora, tibiae and tarsi and entirely red petiolus.
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