Bug Identifier
Wheel bug (likely)
Community identification

Wheel bug (likely)

Arilus cristatus

Order & Family
Hemiptera; Reduviidae (assassin bugs)
Size
Adults are approximately 25–36 mm (1–1.4 in) long.
See this bug in the Encyclopedia

Natural Habitat

Woodlands, gardens, orchards, and other vegetation-rich areas across much of North America; often found on tree trunks and buildings.

Diet & Feeding

A predatory true bug that pierces caterpillars, beetles, and other insects with its beak, injecting saliva and sucking out liquefied tissues.

Behavior Patterns

Usually solitary and slow-moving, with a distinctive cogwheel-like thoracic crest in adults; nymphs are wingless and reddish. Adults may fly but commonly patrol trunks and foliage for prey.

Risks & Benefits

Beneficial as a predator of many garden and forest pests. It is not dangerous unless handled; its painful defensive bite can cause localized swelling and discomfort.