Woolly Alder Sawfly vs Horned Baboon Spider-hunting Wasp

Side-by-side species comparison

Attribute Woolly Alder Sawfly Horned Baboon Spider-hunting Wasp
Scientific Name Eriocampa ovata Sphex tomentosus
Order Hymenoptera Hymenoptera
Family Tenthredinidae Sphecidae
Size 5-7 mm 25-35 mm
Habitat Rivers & Streams Deserts & Drylands
Diet Herbivores Predators
Regions Europe, introduced to North America East Africa (Kenya, Tanzania, Ethiopia, Uganda)
Conservation Least Concern Least Concern

Woolly Alder Sawfly

A small, dark sawfly whose larvae are covered in a white, woolly, waxy secretion. The larvae feed on the underside of alder leaves.

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Did You Know?

The white waxy covering on the larva closely resembles woolly aphids, a possible case of defensive mimicry.

Horned Baboon Spider-hunting Wasp

A large, solitary wasp with a black body and metallic blue-green sheen. It hunts grasshoppers and katydids, paralyzing them and provisioning underground nest cells.

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Did You Know?

French naturalist Jean-Henri Fabre's observations of this wasp's rigid behavioral routines led to famous debates about insect intelligence.