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dogbane beetle
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Dogbane beetle
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Dogbane beetle
Dogbane beetle A pair of dogbane beetles (Chrysochus auratus).

dogbane beetle

insect
Also known as: Chrysochus auratus
Written and fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

dogbane beetle, (Chrysochus auratus), species of leaf beetle native to eastern North America. It feeds on dogbane and milkweed plants and is toxic to other animals that ingest it.

Taxonomy

See also list of beetles.

The dogbane beetle is oval, convex, and between about 8 to 11 mm (less than 0.5 inch) in length. One of the most brightly colored members of its family, the insect is iridescent blue-green with a metallic copper, golden, or crimson shine. It is closely related to the cobalt milkweed beetle (Chrysochus cobaltinus)

The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Melissa Petruzzello.