Entomology (Study of Bugs)/House bug?

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Question
Unknown bug
Unknown bug  
I have never seen this kind of bug ever. Could you p,ease help identify it please?

Stacie

Answer
Hi, Stacie:

Nice image, especially given the small size of this beetle!

This is a "click beetle" in the genus Aeolus :

http://bugguide.net/node/view/12607/bgpage

There are many species of click beetles in the family Elateridae.  They get their name from the habit of the adult beetles to snap a spine into a groove on their underside, making a clicking sound.  If the beetle is on its back, the force of the spine snapping into the groove can flip the insect quite high in the air, where it turns over and lands on its feet (or bounces it out of reach of a predator).

Look for more click beetles coming to your outdoor lights at night....maybe next year if you live in a cool climate.

Hope this helps!  Thanks again for sharing your find :-)

Eric

Entomology (Study of Bugs)

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Eric R. Eaton

Expertise

I answer insect and spider identification questions ONLY. Attach images if possible. No "what bit me?", "what do I feed this bug in captivity?", or science fair project questions please. NO TECHNICAL QUESTIONS ABOUT INSECT PHYSIOLOGY.

Experience

Principal author, Kaufman Field Guide to Insects of North America. Professional entomologist employed previously at University of Massachusetts, Chase Studio, Inc., and Cincinnati Zoo; contract work for West Virginia Department of Natural Resources, Smithsonian Institution, and Portland (Oregon) State University.

Publications
Author, Kaufman Field Guide to Insects of North America, Missouri Conservationist magazine, Ranger Rick, Birds & Blooms, Timeline (journal of the Ohio Historical Society). I have contributed to several books as well.

Education/Credentials
Oregon State University, undergraduate major in entomology, did not receive degree.

Awards and Honors
One of the top 50 experts in all categories for AllExperts.com, 2009.

Past/Present Clients
Principal author of the Kaufman Field Guide to Insects of North America, Smithsonian Institution (contract), Cincinnati Zoo (employer), Portland State University (contract), Chase Studio, Inc (employer), Arkansas Museum of Discovery (guest speaker). Currently seeking speaking engagements, leadership roles at nature festivals, workshops, and ecotours.

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