Bug Identifier
Wheel Bug (Nymph)
Community identification

Wheel Bug (Nymph)

Arilus cristatus

Order & Family
Order: Hemiptera, Family: Reduviidae
Size
Nymphs start very small; adults can reach up to 1.5 inches (38 mm).
See this bug in the Encyclopedia

Natural Habitat

Found throughout North America in gardens, orchards, deciduous forests, and fields vegetated with shrubs and trees.

Diet & Feeding

Strictly carnivorous; they are generalist predators that eat caterpillars, beetles, bees, and other insects using a piercing-sucking proboscis.

Behavior Patterns

Solitary predators that ambush or slowly stalk prey. They undergo incomplete metamorphosis, with nymphs like this one molting several times before developing the characteristic dorsal wheel or cog.

Risks & Benefits

Extremely beneficial for natural pest control in gardens. However, they can deliver a very painful bite if handled or provoked; while not medically significant, the pain is described as worse than a bee sting.