Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

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

Moved from Stenelmis sinuata.

based on comments under

Moved from Stenelmis.

Stenelmis sinuata (LeConte)
Keys out nicely and fits MCZ specimen here. Note the divergent sides of the pronotum in the anterior third.

Thanks Tim,
looks like you're working through this family. What keys are you using?

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Though somewhat old and outdated, still a great reference to have..downloaded a pdf copy for myself :)

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).

any chance we've got this one in the wrong place? It initially looks similar.

Certainly in the wrong place...
It's S. sinuata as well.