Black beetle ID?

Asked June 13, 2019, 12:15 AM EDT

Hi, Is it possible to ID these beetles? They're in Albany. Living in wet soil, they burrow in it. Found a few baby ones in wet compost. The adults are 1/2 inch long. Lines running across their backs, three segmented body. Thanks for any help.

Linn County Oregon

1 Response

Thank you for the photos. Looks like you have two different species of beetles. Baby beetles do not resemble adult beetles. They go through complete metamorphosis like a butterfly and the young are called grubs.

The first and third photos are of Nebria brevicollis which is an invasive species from Europe. It is not yet clear what their ecological impact is.

The middle photo is of the strawberry root weevil, Otiorhynchus ovatus Linnaeus and here is a link with more information: https://pnwhandbooks.org/insect/small-fruit/strawberry/strawberry-root-weevil

Hope this helps.