
Community identification
Assassin bug (likely wheel bug nymph)
Arilus cristatus
- Order & Family
- Hemiptera; Reduviidae
- Size
- Nymphs are typically 4–10 mm; adults reach about 28–36 mm.
Natural Habitat
Woodlands, gardens, fields, and other vegetation-rich habitats across much of North America.
Diet & Feeding
A predatory insect that pierces caterpillars, beetles, true bugs, and other arthropods, injecting saliva to liquefy prey tissues.
Behavior Patterns
Usually rests on foliage and ambushes prey; immature stages are wingless and develop through several molts. Adults are more active and may fly to lights.
Risks & Benefits
Beneficial as a natural pest-control predator. It can deliver a painful defensive bite if handled, but it is not generally medically dangerous.