
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.
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.