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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Staphyliniformia » Staphylinoidea » Rove Beetles (Staphylinidae) » Flat Rove Beetles (Piestinae) » Siagonium » Siagonium americanum
Photo#169857
Tiny Rove Beetle at Lights - Siagonium americanum
Copyright © 2008 Stephen_WV

Tiny Rove Beetle at Lights - Siagonium americanum
Near Ruraldale, Upshur County, West Virginia, USA
July 16, 2007
This tiny Rove Beetle was attracted to lights. Can anyone help with the ID?
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Contributed by Stephen_WV on 16 February, 2008 - 8:29am
Last updated 28 July, 2022 - 3:52pm

Moved
Moved from Siagonium americanum.
… Boris Büche, 28 July, 2022 - 3:52pm login or register to post comments

Moved
Moved from Siagonium punctatum.

no regular puncture rows visible
… Boris Büche, 28 July, 2022 - 3:52pm login or register to post comments

Moved
Moved from Rove Beetles.
… Stephen_WV, 25 February, 2008 - 4:08pm login or register to post comments

Piestinae: Siagonium sp.
Looks like S. punctatum to me. Precise statements on size for staphylinids is valuable in identifying them. "Tiny" for me is 1-2 mm. This beetle should be about 5 mm long, moderate in size by my standards.
… Donald S. Chandler, 25 February, 2008 - 12:03pm login or register to post comments

 
Or more likely Siagonium amer
Or more likely Siagonium americanum, based on the light color.
… Alfred F. Newton, 25 April, 2012 - 4:07pm login or register to post comments

 
Thanks
Don, I was able to calculate the beetle's length because I know the lens was at its closest focus and it was a 180mm lens with 1.4x teleconverter. The size I come up with is 5.2 mm, so about right for the species you propose.

Thanks again for your help!
… Stephen_WV, 25 February, 2008 - 4:03pm login or register to post comments

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