Ichneumon cessator MÜLLER, 1776
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https://doi.org/10.5281/zenodo.5274480 |
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https://treatment.plazi.org/id/1977696C-2349-FFCF-B6C9-585E10C0FE1D |
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treatment provided by |
Marcus (2021-08-26 08:19:51, last updated by Plazi 2023-11-04 21:06:39) |
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scientific name |
Ichneumon cessator MÜLLER, 1776 |
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Ichneumon cessator MÜLLER, 1776 View in CoL
syn. nov. Ichneumon jakovlevi KOKUJEV, 1904: 81
M a t e r i a l e x a m i n e d: East Siberia, Irkutsk region, Shelehov environment, 1♀ 2.viii.2005, leg. A. Shavrin (coll. Riedel).
D e s c r i p t i o n: Body length 14.5 mm. Antenna with 43 flagellomeres, bristleshaped; 1 st flagellomere 3.3x longer than wide, c.14 th flagellomere square, widest flagellomeres 0.87x as long as wide, preapical flagellomere 1.15x longer than wide. Malar space 0.7x as long as 1 st flagellomere. Area superomedia 0.75x as long as wide, widest apically. Hind femur 4.4x longer than wide, with scattered punctures in ventral 1/5.
Color: Black. Antenna with diffuse reddish-yellow ring on flagellomeres 8-12. Scutellum and stripes on 6 th and 7 th tergites cream-yellow. Coxae, trochanters and fore and mid trochantelli black; legs otherwise red; hind tibia infuscate in apical 1/3; hind tarsus blackish. Pterostigma reddish.
T a x o n o m i c a l r e m a r k The available specimen is structurally similar to European material of Ichneumon cessator MÜLLER. It differs only by the completely yellow scutellum. I have not seen the type of Ichneumon jakovlevi KOKUJEV , but from the description given by RASNITSYN (1984: 794) who reported the slender basal flagellomere, this var. of I. cessator seems to be conspecific with Ichneumon jakovlevi KOKUJEV which had also been found in the Irkutsk area.
D i s t r i b u t i o n: Palaearctic region, known from Siberia ( KOKUJEV 1904, MEYER 1933).
KOKUJEV N. R. (1904): [Contributions a la faune des Hymenopteres de la prov. d'Irkoutsk. Ichneumonidae I.] (in Russian with Latin descriptions for new species). - Revue Russe d'Entomologie 4 (2 - 3): 80 - 84.
MEYER N. F. (1933): [Keys to parasitic Hymenoptera (family Ichneumonidae) of the USSR and adjacent countries. Vol. 1. Introduction and Ichneumoninae] (in Russian). - Zoological Institute of the Academy of Sciences of the USSR 9 (1): 1 - 458.
RASNITSYN A. P. (1984): [Types of the Ichneumoninae (Hymenoptera, Ichneumonidae) preserved in the Zoological Institute, Academy of Sciences of the USSR. I. Taxa described from the USSR.] (in Russian). - Entomologicheskoye Ob ozreniye 63: 790 - 801.
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