Western Stone vs Long-horned Antlion

Side-by-side species comparison

Attribute Western Stone Long-horned Antlion
Scientific Name Doroneuria baumanni Distoleon tetragrammicus
Order Plecoptera Neuroptera
Family Perlidae Myrmeleontidae
Size 25-35 mm 30-40 mm body, 60-75 mm wingspan
Habitat Mountains Beaches & Coastal
Diet Predators Predators
Regions North America Europe, North Africa
Conservation Least Concern Least Concern

Western Stone

A large predatory stonefly of Pacific Northwest mountain streams. Nymphs have distinctive patterned heads and powerful mandibles.

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Did You Know?

Nymphs take up to three years to complete development in cold mountain streams.

Long-horned Antlion

A large antlion with intricately patterned wings and long clubbed antennae. Unlike most antlions, the larvae do not build pit traps.

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Did You Know?

Its larvae hide just beneath the sand surface and lunge at passing prey rather than using pit traps.