Bug Identifier
Assassin bug (likely wheel bug nymph)
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.
See this bug in the Encyclopedia

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.