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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Predaceous Diving Beetles (Dytiscidae) » Dytiscinae » Hydaticini » Hydaticus » Hydaticus bimarginatus
Photo#715656
Dytiscus, ?? spp. - Hydaticus bimarginatus
Copyright © 2012 M. Leonidov

Dytiscus, ?? spp. - Hydaticus bimarginatus
Mclean, Fairfax County, Virginia, USA
September 21, 2012
Size: 12 mm
Attracted to mercury vapor light.
This species did not seem to match any photos on Bugguide.net...your help please.

Images of this individual: tag all
Dytiscus, ?? spp. - Hydaticus bimarginatus Dytiscus, ?? spp. - Hydaticus bimarginatus
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Contributed by M. Leonidov on 18 October, 2012 - 10:47pm
Last updated 2 November, 2012 - 2:09pm

Moved
Moved from ID Request.
… Eric R. Eaton, 2 November, 2012 - 2:09pm login or register to post comments

Sex ?
So what makes this a male rather than a female ?
… M. Leonidov, 19 October, 2012 - 4:37pm login or register to post comments

 
Front tarsi
In many Dytiscidae, the males have the first pair of tarsi expanded and with suction cups to grip the females while mating.
… Ben Coulter, 19 October, 2012 - 9:57pm login or register to post comments

not Dytiscus; check out Prodaticus bimarginatus
pls correct location data (reads "Mclean, Virginia, Fairfax County, Virginia") following the instructions
also, for beetle/bug identification purposes, a plain dorsal view is usually critical; oblique angles like this one too often fall short of providing enough evidence for a positive ID
-
… v belov, 19 October, 2012 - 6:25am login or register to post comments

 
Yep!
Yes, this is a male Prodaticus bimarginatus ...
… J. H. Epler, 19 October, 2012 - 12:47pm login or register to post comments

 
Thanks again...location corre
Thanks again...location corrected. Noted about the dorsal view.
… M. Leonidov, 19 October, 2012 - 9:05am login or register to post comments

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