Entomology (Study of Bugs)/Bug identification


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I live in Pennsylvania and found this bug crawling on the floor on my yoga mat around night time. I am worried it is a bed bug since I live in a large apartment building. I have tried squashing the bug but it still unfortunately lives. Can you please help me identify this bug? Thank you in advance!

Hi, Samantha:

Thank you for including the images.

Your insect is NOT a bed bug, but some kind of grain-infesting beetle, likely in the family Silvanidae:


Without putting your specimen under a microscope, I cannot tell you which one it is.  Suffice to say that you may want to check the pantry for potentially infested items, though if you have only seen one, it may simply have flown indoors from elsewhere.

Store all vulnerable foodstuffs, including dry pet food and birdseed, in glass, metal, or durable plastic containers with tight-fitting lids.  Cardboard boxes and cellophane bags offer no barrier to insects.

So rest easy.  Do be wary of accidentally bringing bed bugs home with you when you travel.  Here is my "Bed Bug Primer" from my blog:


Take care.


Entomology (Study of Bugs)

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Eric R. Eaton


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.


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.

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.

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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