Entomology (Study of Bugs)/Red Butt Wasp


Red Butt Wasp
Red Butt Wasp  
Could you please let me know what this is. It was in my office in central CA .  Jack said to check with you:

Looks like a sphecid wasp, possibly this one http://bugeric.blogspot.com/2010/07/wasp-wednesday-prionyx-thomae.html. BTW, Eric is an Expert in this AllExperts section so you might ask him to confirm.

Jack DeAngelis

Hi, Trinity:

Hard to tell for certain from the image, but I believe this is a female wasp in the genus Astata .  They hunt stink bugs.  They are solitary and of no concern.  This one apparently got indoors by accident.  Here's more about them:


Thanks for sharing your find.


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.

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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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