Bug Identifier
Red velvet ant (cow killer)
Community identification

Red velvet ant (cow killer)

Dasymutilla sp., likely Dasymutilla occidentalis

Order & Family
Hymenoptera; Mutillidae
Size
About 12–25 mm (0.5–1 in), depending on species and sex.
See this bug in the Encyclopedia

Natural Habitat

Open, sandy or well-drained ground, grasslands, woodland edges, and lawns across much of North America. Females are wingless and commonly roam on soil and leaf litter.

Diet & Feeding

Adults consume nectar and possibly other plant liquids; males may also feed on honeydew. Larvae are parasitoids of ground-nesting bees and wasps, consuming developing brood.

Behavior Patterns

The pictured individual is likely a female, recognizable by its wingless body and dense red-orange hairs. Females search actively for host nests and can produce a loud squeak when handled; males are winged.

Risks & Benefits

Females have an exceptionally painful sting, but they are not aggressive and rarely sting unless restrained. They benefit ecosystems by regulating solitary bee and wasp populations and contributing modestly to pollination.