Chasmias lugens (male), Southern Norway

Chasmias lugens (male), Southern Norway

Postby Geir_Oersnes on 22 Aug 2017, 23:37

Get to Ichneumon lugens with the key in Perkins 1960 with this one. Is it correctly determined? I don't find any detailed descriptions of the males of this species (it's not included in Hilpert 1992 because it was previously placed in genus Chasmias).

Size is close to 21 mm. Flagellum with 39 segments (tyloids small and long oval, on segments 6-14).

Specimen is from a malaise trap, collected 23.07.2016 in Aust-Agder, Southern Norway (not by me, got it from another collector).


Edit: I've found some short descriptions in Rasnitsyn 1981 (translated from Russian). The males should have white rings on tibia for example, and flagellum with 34-39 segments.
Attachments
lugens07.JPG
lugens06.JPG
lugens05.JPG
lugens04.JPG
lugens02.JPG
lugens01.JPG
Last edited by Geir_Oersnes on 25 Aug 2017, 23:39, edited 5 times in total.
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Re: Ichneumon lugens (male), Southern Norway

Postby Geir_Oersnes on 22 Aug 2017, 23:38

More photos:
Attachments
lugens09.JPG
lugens08.JPG
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Re: Ichneumon lugens (male), Southern Norway

Postby Camille Thirion on 24 Aug 2017, 17:53

Probably!

Chasmias lugens
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Re: Ichneumon lugens (male), Southern Norway

Postby Geir_Oersnes on 24 Aug 2017, 23:05

Thank you! I'll change the title to Chasmias lugens.
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Re: Chasmias lugens (male), Southern Norway

Postby D & JP Balmer on 25 Aug 2017, 22:39

Hello,
According to Berthoumieu :

. Clypeus légèrement bisinué au bord. Antennes noires, annelées
de blanc, à peine atténuées. Ligne sous les ailes et écusson blanc-jaune.
Aréole supéro-médiane rectangulaire, allongée. Ailes un peu enfumées,
stigma fauve. Pieds noirs, avec les tibias et tarses antérieurs brun roux.
Abdomen tout noir. Postpétiole aciculé. Gastrocèles médiocres, assez
profonds. 2ème segment à ponctuation très serrée. — Long. 17-20 mill.
. Orbites de la face et devant du scape blancs. Antennes sétacées,
annelées de blanc. Marge du cou et tache sur l'écusson blanches. Tibias
noirs, annelés de blanc. Le reste comme chez la femelle.
La femelle hiverne sous les mousses.
Patrie : Assez répandu en Europe.

Regards.
D & JP Balmer
Last edited by D & JP Balmer on 26 Aug 2017, 14:26, edited 2 times in total.
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Re: Chasmias lugens (male), Southern Norway

Postby Geir_Oersnes on 25 Aug 2017, 23:26

Thanks for adding the descriptions! It's easier to understand than the Russian descriptions... The most important detail for me is that the males have white ringed tibia, I thought they had all black tibia as the females... (made me unsure even if it keyed out to lugens in Perkins).
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