Thread subject: Diptera.info :: Zabrus or Anisodactylus?

Posted by Sergey Golubev on 23-11-2007 15:30
#1

This picture was taken in July this year in Voronezh region (Central black-earth zone, Russia). The beetle is sitting on the ear of winter triticale plant (a hybrid between rye and wheat). Can someone ID the genus? I suppose it might be a corn ground beetle (Zabrus tenebrioides).
Best regards,
Sergey

Posted by Sundew on 27-11-2007 00:27
#2

In Zabrus males, the front tarsi have three broadened, heart-shaped segments, whereas Anisodactylus males have front tarsi (and often also median tarsi) with four such broadened segments. Provided that yours is a male, I would count four segments...
However, to be on the safe side, send Frank Koehler a personal message and ask for advice - he is a very good Coleoptera expert.
Regards, Sundew