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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Predaceous Diving Beetles (Dytiscidae) » Matinae » Matus » Matus ovatus
Photo#583329
Dytiscid - Matus ovatus - female
Copyright © 2011 tom murray

Dytiscid - Matus ovatus - Female
Groton, Middlesex County, Massachusetts, USA
October 1, 2011
Size: 8.1mm
Netted from a weedy edge of a swamp.

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Dytiscid - Matus ovatus - female Dytiscid - Matus ovatus - female
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Contributed by tom murray on 2 October, 2011 - 12:10am
Last updated 21 November, 2011 - 7:35am

Finally...Matus ovatus :)
Based on microscopic examination of this female specimen. This species has the metacoxal plates with microsculpture as well as numerous small punctures. M. bicarinatus has the metacoxal region shiny with no visible microsculpture and is sparsely punctate. The male genitalia is also distinctive- now your job is to find a male!
… Tim Loh, 21 November, 2011 - 12:01am login or register to post comments

 
Finding a male
Both species of Matus came from the same swamp behind the house. So you may get a few more M. bicarinatus before a male ovatus shows up.
… tom murray, 21 November, 2011 - 7:44am login or register to post comments

Moved
Moved from Predaceous Diving Beetles.
… tom murray, 2 October, 2011 - 11:47am login or register to post comments

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