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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Staphyliniformia » Staphylinoidea » Rove Beetles (Staphylinidae) » Large Rove Beetles (Staphylininae) » Staphylinini » Philonthina » Gabrius
Photo#180124
rove beetle - Gabrius
Copyright © 2008 tom murray

rove beetle - Gabrius
Woodford, Bennington County, Vermont, USA
May 1, 2008
Size: ~4mm
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Contributed by tom murray on 1 May, 2008 - 10:49pm
Last updated 18 February, 2011 - 4:59pm

Moved
Moved from Erichsonius.
Thanks for correcting this one Adam. I know it's difficult identifying all these roves from photos alone.
… tom murray, 18 February, 2011 - 4:59pm login or register to post comments

Was browsing the guide a bit
Was browsing the guide a bit - this is Gabrius! Hard to say exactly which. It sort of looks like E. patella at first glance but the head is much too sparsely punctate for an Erichsonius. It seems I have improved quite a bit on my 'gestalt' recognition since 2008... Now it's almost embarrassing that I mis-ID'd this.

Adam
… Adam Brunke, 18 February, 2011 - 11:39am login or register to post comments

Thanks Adam
I never noticed that swollen second antennomere. The beetle is a little too small for me to get a good enough look at to see if the translucent triangle is there.
… tom murray, 2 May, 2008 - 11:29pm login or register to post comments

Erichsonius
This is almost certainly a species of Erichsonius : distinct habitus, swollen 2nd antennomere, distinctive punctation on pronotum (characteristic of several northeastern Erichsonius spp.). On the actual specimen a thin, translucent triangle should be present behind the forefemur (a postcoxal process). Confirmation on the postcoxal process would make this a 100% certainty, as the related and similar Neo*bisnius species sometimes have similar antennae.
… Adam Brunke, 2 May, 2008 - 10:47pm login or register to post comments

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