Entomology (Study of Bugs)/Seedbug or other?



I recently found 3 of these on my window screen. We just painted so I'm guessing the fumes made some bugs come out. I live in Los Angeles and it's March.

I submitted this to another website but they just directed me to their photos. I've been through them and It resembles many seed bugs but the head on mine is much bigger. Can you please help me identify it?

Also, up first inspection, the largest one seemed to have a stinger? Coming from its tale end. It was orange-ish reddish. Was that indeed a stinger? or a mating movement?  I'm most curious to know of these are dangerous.

Thank you so much for your time.


Dear Amanda -First off, my apologies for the delay in responding - I somehow failed to complete the process when your question initially came in. That aside, what you have here is a long-horned wood-boring beetle (Coleoptera: Cerambycidae). Unfortunately, because of the image quality combined with the angle from which the image was taken, I cannot provide a more specific identification. My best guess is that it could be in the tribe Clytini - see http://tinyurl.com/q8m8wry for some examples. At any rate, this is nothing that will damage your home or any of its contents.

Hope this helps,

Entomology (Study of Bugs)

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Ed Saugstad


Will accept most questions in general entomology, including those related to medical entomology, taxonomy, ecology, arthropod surveillance, and pest management. If you are requesting a 'mystery bug' identification, PLEASE either attach an image to your question, or post an image on a web page (such as Flickr) so that I can look at it, as verbal descriptions frequently are insufficient for a definitive identification.


21 years in the U.S. Army as a medical entomologist; duties varied from surveillance of pest populations (including mosquitoes, cockroaches, ticks, and stored products pests) to conducting research on mosquito-virus ecological relationships and mosquito faunal studies. Ten years as a civilian analyst for the Department of Defense, primarily on distribution of vector-borne diseases worldwide. Limited experience on surveillance of agricultural insects in North Dakota and Indiana.

Entomological Society of America, West Virginia Entomological Society, Society for Vector Ecology, National Speleological Society, West Virginia Association for Cave Studies.

American Journal of Public Health, Contributions of the American Entomological Institute, Japanese Journal of Sanitary Zoology, Journal of Economic Entomology, Mosquito News, and Mosquito Systematics.

B.S. in entomology from North Dakota State University in 1963, M.S. in entomology from Purdue University in 1967.

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