
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.
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.