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Brown Prionid

Orthosoma brunneum


About 40 mm or so in body length, colored as shown.


Found at night in suburban/rural interface with deciduous forest interrupted by residential neighborhoods and agricultural fields.

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CariRitzenthaler 10 years ago

Thank you so much! I'll look at the library for those books. Identifying beetles proved to be incredibly hard without a proper source to help. If I have anymore questions I'll be sure to email you! Thank you again!

BugEric 10 years ago

Cari: Please e-mail me at BugEric24ATyahooDOTcom if you want further help. Meanwhile, the two-volume set on "American Beetles" is indispensable. You should have access to it through the university. There are also plenty of experts through the Coleopterist's Society, several who I know personally.

CariRitzenthaler 10 years ago

Hello! I notice you found this beetle in Massachusetts. I'm currently working in a lab identifying beetles that were caught in pit fall traps in Harvard forest in Massachusetts as a part of a global warming study. I'm finding a lot of difficulty with this occasionally and I can't post every beetle, especially since many are small and need a microscope to see well. I was wondering if you knew of any good beetle identification keys?
Thank you for your help!

Spotted by

Deerfield, Massachusetts, USA

Spotted on Jul 28, 2009
Submitted on Oct 19, 2013

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Brown Prionid Beetle Brown Prionid beetle Brown Prionid Beetle Brown prionid

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