Larva of Klamathweed beetle, Chrysolina quadrigemina, on a bud of common St. Johnswort, Hypericum perforatum.

Larva of Klamathweed beetle on a bud of common St. Johnswort.; Oregon Credit: Eric Coombs, Oregon Department of Agriculture, Bugwood.org
Credit: Eric Coombs, Oregon Department of Agriculture, Bugwood.org