Wheel Bug vs Gooseberry Sawfly

Side-by-side species comparison

Attribute Wheel Bug Gooseberry Sawfly
Scientific Name Arilus cristatus Nematus ribesii
Order Hemiptera Hymenoptera
Family Reduviidae Tenthredinidae
Size 28-36 mm 6-8 mm (adult)
Habitat Orchards Orchards
Diet Omnivores Herbivores
Regions North America Europe, North America
Conservation Least Concern Not Evaluated

Wheel Bug

The largest assassin bug in North America, named for the distinctive cogwheel-shaped crest on its thorax. It delivers an extremely painful bite if handled.

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Did You Know?

Its bite injects cytolytic venom that dissolves tissue, producing pain reported to be worse than a wasp sting lasting for days.

Gooseberry Sawfly

The most destructive insect pest of gooseberry and red currant bushes in Europe. Larvae can strip bushes completely of leaves within days.

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Did You Know?

Three generations per year mean larvae can be found feeding from spring through autumn.