Chrysochus auratus


Chrysochus auratus, the dogbane beetle, of eastern North America, is a member of the leaf beetle subfamily Eumolpinae. It is primarily found east of the Rocky Mountains. One of the brightest in its family, it is iridescent blue-green with a metallic copper, golden or crimson shine. Its diet mainly consists of dogbane, specifically Apocynum cannabinum and Apocynum androsaemifolium, and occasionally it eats milkweed. It measures between 8 and 11 mm and has a convex, oval shape.
At least two regions of sympatry between C. auratus and Chrysochus cobaltinus have been documented in western North America.

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