Ichneumon pilocephalus, Riedel, 2020
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publication ID |
https://doi.org/ 10.21248/contrib.entomol.70.2.365-386 |
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publication LSID |
lsid:zoobank.org:pub:0E34351E-B1AE-4334-AB1C-29C38CEF6318 |
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persistent identifier |
https://treatment.plazi.org/id/FCB03748-C2BF-47B5-9439-397B6E944973 |
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taxon LSID |
lsid:zoobank.org:act:FCB03748-C2BF-47B5-9439-397B6E944973 |
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treatment provided by |
Carolina |
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scientific name |
Ichneumon pilocephalus |
| status |
sp. nov. |
Ichneumon pilocephalus spec. nov.
urn:lsid:zoobank.org:act:FCB03748-C2BF-47B5-9439-397B6E944973
( Figs 7 View Figs 1–8 , 31 View Figs 27–34 , 38 View Figs 35–40 , 43, 44)
Holotype: “ 21.07.1991, Mutnovaki-Vulkan, Süd-
Kamtschatka, leg. R. Predel ” (Erfurt) .
Description: . Body length 13 mm. Flagellum almost filiform, with 40 flagellomeres; 1 st flagellomere 1.5x longer than wide, c. 6 th flagellomere square, widest flagellomeres 1.4x wider than long; preapical flagellomere 0.75x as long as wide.
Head covered with rather long and erect brown hairs. Temple moderately and roundly narrowed behind eye, dorsally 0.75x as long as eye. Distance of lateral ocellus to eye 1.7x ocellar diameter. Frons densely punctate. Face transversely rugose-punctate. Clypeus slightly convex and with weak medio-apical impression, with scattered punctures. Gena 1.3x wider than eye, with scattered punctures ventrally. Malar space 1.0x longer than width of mandib- ular base. Mandible slender and long, upper tooth with rounded tip, lower tooth very small and only indicated as small extension on lower margin of upper tooth. Genal carina complete, reaching hypostomal carina away from mandibular base, both carinae low.
Mesosoma covered with erect brownish hairs. Side of pronotum largely striate, punctate on upper margin. Notaulus not impressed. Mesoscutum densely punctate frontally, with scattered fine punctures in apical half. Mesopleuron and metapleuron densely striate-punctate; juxtacoxal carina present. Scutellum moderately elevated, about as long as wide, with fine scattered punctures and without lateral carina. Propodeum rugose. Area superomedia square, finely rugose; costula absent. Area petiolaris rugose, without lateral carinae. Hind coxa with dense brown hairs and dense punctures, with blunt longitudinal edge ventrally, without scopa. Hind femur with scattered punctures in ventral half, 3.8x longer than wide. Hind tibia with c. 6 apico-external spurs. Tarsomeres not widened.
Areolet pentagonal, frontal distance of intercubiti 4x their diameter; 2 nd recurrent vein in its middle. Nervulus slightly postfurcal by 1x its width.
Metasoma strongly oxypygous, hypopygium short. Postpetiolus strongly widened, lateral field 0.5x as wide as the median one, punctate; median field with fine regular
RIEDEL, M.: COntribUtiOn tO the knOWLedge OF IChneUMOninAe OF SiberiA And FAr EASt RUSSiA
spec. nov. : 18. face, 19. head from dorsal, 20. basal tergites.
striation. 2 nd tergite 1.3x wider than long. Gastrocoelus impressed, with strong ridges; thyridium almost transverse, c. 0.75x as wide as the interval. 2 nd and 3 rd tergites densely punctate, without median rugae. 4 th tergite with fine dense punctures, following tergites with very superficial punctures. 2 nd to 4 th sternites with median folds. Ovipositor sheath slightly extending behind metasomal apex.
Color: Black. Flagellum black, central flagellomeres (c. 8-13) ± reddish ventrally, but flagellum without clear pale ring. Palps, mandible centrally and median spot on face reddish. Collare and tegula red; scutellum with dark reddish shine. Postpetiolus apically, 2 nd tergite entirely and lateral spots on 3 rd tergite red. 7 th tergite with median ivory spot. Coxae and trochanters black; hind trochantellus red; mid femur except red apex and hind femur completely black. Tibiae and tarsi red; hind tibia with weak infuscation in apical 0.1. Wings slightly yellowish; pterostigma yellow-red.
: unknown.
Remark: Due to the ventral edge of hind coxa, this new species belongs to the group E4 sensu HILPERT (1992). It is characterized by the erect pilosity on head and mesosoma, modified form of mandible, and absence of pale flagellar ring.
In the key for Siberian Ichneumon ( RIEDEL, 2018) , this new taxon runs to couplet 46 ( Ichneumon mandibulatus RIEDEL ). It differs from I. mandibulatus by the slenderer mandible, erect pilosity, mainly black 3 rd tergite, absence of ivory spots on 5 th and 6 th tergites, and dark reddish scutellum.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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