Western Stone vs Lichen Katydid

Side-by-side species comparison

Attribute Western Stone Lichen Katydid
Scientific Name Doroneuria baumanni Dysonia sp. (Dysonia magdalenae)
Order Plecoptera Orthoptera
Family Perlidae Tettigoniidae
Size 25-35 mm 30-45 mm
Habitat Mountains Mountains
Diet Predators Herbivores
Regions North America Costa Rica, Panama, Colombia
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.

Lichen Katydid

A Central American katydid with a mottled gray-green body that perfectly mimics lichen on bark. It is nearly invisible when pressed against a tree trunk.

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Did You Know?

It feeds on the same lichen it mimics, making it both predator and impersonator of its food source.