Subject: Bug ID help, please
Location: Albuquerque, NM
July 1, 2016 12:08 pm
Dear Bug People,
I’m assuming these are some kind of leaf beetle judging by the damage to that plant. These beetles were in the riparian area near the Rio Grande. I have a field guide specific to this area, but I don’t see this shape with this color. Thanks for your help!
You are correct that these are Leaf Beetles in the family Chrysomelidae, and more specifically they are Dogbane Beetles, Chrysochus auratus, which you may verify by comparing your individuals to this Dogbane Beetle posted to BugGuide. According to BugGuide: “They mate and lay eggs through the summer. They lay eggs on leaves and stems of host plants and nearby vegetation in masses of egg capsules.”