Entomology (Study of Bugs)/Bug Id Needed


Pic of bug
Pic of bug  

2nd pic of bug
2nd pic of bug  
I made cookies and when I returned to the kitchen to clean the bowl this bug was on the floor. It then took flight and landed on my beaters in my mixing bowl. It was about 4pm, still sunny outside. The shape of the wings have me freaked out that it may be a cockroach, but the pattern on the wings didn't look right out to me. It appeared to be black color. I live in the Midwest and would really appreciate help identifying this insect.

Hi, Alyssa:

Good news:  No worries!

The insect in your image is a type of "sawfly," a stingless wasp in the family Tenthredinidae, genus Dolerus .  I collected several of these when I lived in Cincinnati.  Here's more about them:


Their larvae look like caterpillars of butterflies or moths, and most feed on grasses (a few on primitive plants called horsetails).

The adults do not sting and are completely harmless.



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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