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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Long-horned and Leaf Beetles (Chrysomeloidea) » Leaf Beetles (Chrysomelidae) » Chrysomelinae » Chrysolina » quadrigemina / hyperici species group (Chrysolina quadrigemina / hyperici species group)
Photo#42328
Leaf Beetle - Chrysolina
Copyright © 2006 Aaron Michael Peterson

Leaf Beetle - Chrysolina
Medford, Jackson County, Oregon, USA
February 5, 2006
There were several of these beetles in one area. Each of them was on a specific leaf. The image was taken in the late afternoon, around 4:00PM.

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Leaf Beetle - Chrysolina Leaf Beetle - Chrysolina
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Contributed by Aaron Michael Peterson on 7 February, 2006 - 3:51pm
Last updated 18 September, 2008 - 4:30pm

Moved
Moved from Chrysolina.
… tom murray, 18 September, 2008 - 4:30pm login or register to post comments

Klamathweed beetle?
This is definitely a leaf beetle (family Chrysomelidae), and reminds me most of the klamathweed beetle, Chrysolina quadrigemina. If so, then the plant it is eating would be St. John's wort. It was introduced here from Europe to help control klamathweed (aka St. John's wort), a plant that causes sensitivity to the sun in cattle that eat it. This beetle comes in several colors, too (bronze, blue, green). Does any of this correspond to your observations?
… Eric R. Eaton, 7 February, 2006 - 4:51pm login or register to post comments

 
I thought it was a Leaf Beetle...
Thanks for the ID! I thought it was some type of Leaf Beetle, but I wasn't sure. I've seen other pictures of the Klamath Weed Beetle and it seems to be the same kind of bug that I saw. So that works for me. Good stuff.
… Aaron Michael Peterson, 7 February, 2006 - 11:48pm login or register to post comments

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