The red milkweed beetle (Tetraopes tetrophthalmus) specializes in eating milkweeds. The larvae bore into the roots; the adults chew the foliage and leaves. The bright red is a warning: Like other insects that eat milkweeds, this beetle ingests milkweed’s toxic chemicals and becomes unpalatable or sickening to predators. “Tetraopes” means “four-eyed,” and beetles in this genus are sometimes called “four-eyed beetles.” Each eye is divided by an antenna base, making it look like two. A similar species is the red-femured milkweed borer (T. femoratus), whose antennae are black with white rings (not all black), legs are partially reddish (not all black), and commonly has smaller black dots. Look for these milkweed beetles in prairies and roadsides where milkweeds are abundant.