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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Predaceous Diving Beetles (Dytiscidae) » Dytiscinae » Dytiscus » Dytiscus carolinus
Photo#174493
Predacious Diving Beetle - Dytiscus carolinus
Copyright © 2008 tom murray

Predacious Diving Beetle - Dytiscus carolinus
Groton, Middlesex County, Massachusetts, USA
March 27, 2008
Size: 25mm

Images of this individual: tag all
Predacious Diving Beetle - Dytiscus carolinus Predacious Diving Beetle - Dytiscus carolinus Predacious Diving Beetle - Dytiscus carolinus
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Contributed by tom murray on 27 March, 2008 - 6:36pm
Last updated 11 January, 2009 - 7:40am

Moved
Moved from Dytiscus.
… tom murray, 11 January, 2009 - 7:40am login or register to post comments

D. verticalis?
based on the color of the pronotal margins (BG images)
… Tim Loh, 3 January, 2009 - 2:14pm login or register to post comments

 
Looks like a good match
but it seems to be about 10mm small for D. verticalis.
… tom murray, 3 January, 2009 - 2:31pm login or register to post comments

 
Then must be D. carolinus
Based on DJ Larson's key to species (2001 publication on Neartic Dysticidae). Size is about right (22-27 mm), abdominal sterna colouration reddish to black and elytra with no yellow subapical transverse fascia. Range: From S. Wisconsin to Alabama. New species to the guide!
… Tim Loh, 11 January, 2009 - 12:53am login or register to post comments

 
Tim,
Looking at the other Dytiscus in the guide, D. fasciventris looks like a possibility too.
… tom murray, 11 January, 2009 - 7:46am login or register to post comments

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