Entomology (Study of Bugs)/Bugs in the cabinet



Bug 2
Bug 2  
I have found these bugs in the drawers of the employee lounge at my work. No one in the office can identify them.  Do you have any idea what thu could be?


Thanks for including the images with your question.  Ordinarily, I would need to know the geographic location where you found them, but these particular beetles are found nearly worldwide.

The images show grain-infesting beetles of the family Silvanidae.  More about them here:


and here:


and here:


Information regarding the control and prevention of the Sawtooth Grain Beetle applies to all other members of the family Silvanidae, and to other "stored product pests" as well.

There is not much you can do if the product purchased was already infested during manufacture, storage, or shipping.  Simply discard the infested product and store subsequent vulnerable foodstuffs in glass, metal, or durable plastic containers with tight-fitting lids.  This includes dry pet food.

As far as I know, grain beetles pose no threat to human health.


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.

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

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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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