Graceful Winter Stonefly vs Western Stone

Side-by-side species comparison

Attribute Graceful Winter Stonefly Western Stone
Scientific Name Capnia gracilaria Doroneuria baumanni
Order Plecoptera Plecoptera
Family Capniidae Perlidae
Size 4-6 mm 25-35 mm
Habitat Rivers & Streams Mountains
Diet Detritivores Predators
Regions North America North America
Conservation Least Concern Least Concern

Graceful Winter Stonefly

A minute stonefly of cold North American headwater streams emerging in winter. Females are often short-winged or wingless.

💡

Did You Know?

Females sacrifice flight ability for greater egg production by reducing or eliminating their wings.

Western Stone

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

💡

Did You Know?

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