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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Staphyliniformia » Staphylinoidea » Rove Beetles (Staphylinidae) » Aleocharinae » Gymnusini » Gymnusa » Gymnusa atra
Photo#165089
winter rove beetle - Gymnusa atra
Copyright © 2008 tom murray

winter rove beetle - Gymnusa atra
Groton, Middlesex County, Massachusetts, USA
January 13, 2008
Size: 5mm
Found this and several other rove beetles out walking around on the ice of a frozen swamp. The primary vegetation was cattails, with a few winterberry and purple loostrife.

Images of this individual: tag all
winter rove beetle - Gymnusa atra winter rove beetle - Gymnusa atra winter rove beetle - Gymnusa atra
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Contributed by tom murray on 13 January, 2008 - 6:36pm
Last updated 22 January, 2008 - 4:19pm

Moved
This was right in my back yard. I've found a number of really good bugs, including a North American record from my yard. You don't always have to go far to find a surprise.
… tom murray, 22 January, 2008 - 4:19pm login or register to post comments

Gymnusa atra
Keys right out in Jan Klimaszewski's revision. A rarely collected species.
… Donald S. Chandler, 22 January, 2008 - 1:26pm login or register to post comments

Gymnusa sp.
I'd never have thought this was an Aleocharine. I checked the UNH data base, and they list 2 species, atra and grandiceps. Thanks for getting it down to genus. Now we'll see if Don can nail down the species.
… tom murray, 14 January, 2008 - 9:17am login or register to post comments

Wow!
Never found one of these rare, but characteristic Aleocharines - genus Gymnusa (information here.
Will have to be keyed to species (6 listed in Nearctica)
… Boris Büche, 14 January, 2008 - 4:43am login or register to post comments

Save
for me please, can't even tell the subfamily for sure from this angle.
… Donald S. Chandler, 13 January, 2008 - 6:37pm login or register to post comments

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