Bug Identifier
Wheel bug (likely juvenile)
Community identification

Wheel bug (likely juvenile)

Arilus cristatus

Order & Family
Hemiptera; Reduviidae (assassin bugs)
Size
Adults are typically 25–36 mm long; nymphs are smaller and wingless. The pictured insect appears to be a nymph or young adult.
See this bug in the Encyclopedia

Natural Habitat

Common in gardens, woodland edges, orchards, and other areas with shrubs or trees across much of North America. Adults often rest on trunks, foliage, walls, and windows.

Diet & Feeding

A predatory insect that pierces prey with its beak and sucks out body fluids, feeding on caterpillars, beetles, true bugs, and other arthropods.

Behavior Patterns

Usually solitary and ambush-oriented, it patrols vegetation or waits motionless for prey. It has one generation annually in many regions; eggs overwinter and nymphs develop through several stages.

Risks & Benefits

Highly beneficial for natural pest control. It can deliver a painful defensive bite if handled or trapped, but it is not considered medically dangerous.