Yellow Dance Fly vs Claassenia Stonefly

Side-by-side species comparison

Attribute Yellow Dance Fly Claassenia Stonefly
Scientific Name Empis stercorea Claassenia sabulosa
Order Diptera Plecoptera
Family Empididae Perlidae
Size 6-8 mm 25-40 mm
Habitat Hedgerows Rivers & Streams
Diet Predators Predators
Regions Europe Western North America
Conservation Least Concern Least Concern

Yellow Dance Fly

A medium-sized dance fly with a yellowish body commonly found on spring flowers. Males present prey items as mating gifts. An important pollinator of spring flowers.

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Did You Know?

Important early-season pollinators that visit spring flowers while also hunting small insects on them.

Claassenia Stonefly

A large predatory stonefly with a mottled yellow and brown pattern. The nymphs are active nocturnal hunters that roam the stream bed seeking prey.

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Did You Know?

Nymphs often crawl out of the water at night to hunt, making them vulnerable to bats and spiders.