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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Elateriformia » Byrrhoidea » Riffle Beetles (Elmidae) » Elminae » Elmini » Stenelmis » quadrimaculata / musgravei group (Stenelmis quadrimaculata / musgravei group)
Photo#345867
Stenelmis
Copyright © 2009 Tim Moyer

Stenelmis
Medford, (~25 miles east of Philadelphia, PA) Burlington County, New Jersey, USA
August 17, 2009
Size: 3.3mm
Stenelmis sp. I believe. Anything beyond that would be just a guess for me. Suggestions welcome :)

came to UV light

Images of this individual: tag all
Stenelmis Stenelmis Stenelmis
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Contributed by Tim Moyer on 23 October, 2009 - 3:51pm
Last updated 15 November, 2010 - 10:44am

Moved
Moved from Stenelmis sinuata.

based on comments under
… Tim Moyer, 15 November, 2010 - 10:44am login or register to post comments

Moved
Moved from Stenelmis.
… Tim Loh, 7 January, 2010 - 2:04am login or register to post comments

Stenelmis sinuata (LeConte)
Keys out nicely and fits MCZ specimen here. Note the divergent sides of the pronotum in the anterior third.
… Tim Loh, 7 January, 2010 - 2:03am login or register to post comments

 
Thanks Tim,
looks like you're working through this family. What keys are you using?
… Tim Moyer, 7 January, 2010 - 9:53pm login or register to post comments

 
Aquatic dryopoid beetles (Col
Aquatic dryopoid beetles (Coleoptera) of the United States. EPA Water Pollution Control Research Series 600D76001 , Brown, H.P. 1976

Though somewhat old and outdated, still a great reference to have..downloaded a pdf copy for myself :)
… Tim Loh, 7 January, 2010 - 10:26pm login or register to post comments

 
need to try it
Thanks, I have that one but haven't tried to use it lately. The keys in D&A, which should be newer and confined to my area, just don't seem certain enough for these beetles (perhaps it's the user).
… Tim Moyer, 8 January, 2010 - 6:25am login or register to post comments

 
also,
any chance we've got this one in the wrong place? It initially looks similar.
… Tim Moyer, 8 January, 2010 - 6:34am login or register to post comments

 
Certainly in the wrong place...
It's S. sinuata as well.
… Tim Loh, 8 January, 2010 - 6:58pm login or register to post comments

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