Entomology (Study of Bugs)/Black bug


Black beetle-like bug
Black beetle-like bug  
We live in downtown Toronto and we found a couple of these bugs in our apartment. We have never seen them before and wondering if you can identify it. Also, do they pose a problem?

Dear Lulu - This is a short-nosed/broad-snouted weevil (Coleoptera: Curculionidae; subfamily Entiminae); some species readily enter buildings, apparently in search of shelter, but do no harm there. Although your specimen resembles the black vine weevil (Otiorhynchus sulcatus - see http://tinyurl.com/nbxaorh for an image), I hesitate to confirm that because of its damaged condition. Just in case, see http://tinyurl.com/kmkarve for a fact sheet on this insect.

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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