
Community identification
Orange-rumped velvet ant
Dasymutilla occidentalis
- Order & Family
- Hymenoptera: Mutillidae
- Size
- 10 to 19 mm in length
Natural Habitat
Open fields, pastures, and sandy areas primarily in eastern North America.
Diet & Feeding
Adults feed on nectar, while larvae are external parasites of other ground-nesting bees and wasps.
Behavior Patterns
The wingless females, like the one pictured, are known for their extremely painful sting and tough exoskeleton. They are solitary and active during the day.
Risks & Benefits
The sting is exceptionally painful, earning them the nickname 'cow killer,' though they are generally not aggressive unless handled. They help control the populations of ground-nesting bees and wasps.