Western Stone vs Macromeris Spider Wasp

Side-by-side species comparison

Attribute Western Stone Macromeris Spider Wasp
Scientific Name Doroneuria baumanni Entypus unifasciatus
Order Plecoptera Hymenoptera
Family Perlidae Pompilidae
Size 25-35 mm 15-30 mm
Habitat Mountains Deserts & Drylands
Diet Predators Predators
Regions North America North America, South America
Conservation Least Concern Least Concern

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.

Macromeris Spider Wasp

A large dark spider wasp with a single white or yellow band on the abdomen. It hunts large wolf spiders and trapdoor spiders across the Americas.

💡

Did You Know?

Its single bright abdominal band makes it one of the most easily identified spider wasps in the field.