Needle Stonefly vs Painted Soldier Fly

Side-by-side species comparison

Attribute Needle Stonefly Painted Soldier Fly
Scientific Name Leuctra fusca Sargus cuprarius
Order Plecoptera Diptera
Family Leuctridae Stratiomyidae
Size 6-10 mm 10-14 mm
Habitat Rivers & Streams Underground
Diet Herbivores Herbivores
Regions Europe, Asia Europe
Conservation Least Concern Least Concern

Needle Stonefly

A small slender stonefly that rolls its wings tightly around its body at rest, giving it a needle-like appearance. Common in small streams across Europe.

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Did You Know?

Needle stoneflies are among the most pollution-sensitive aquatic insects and disappear quickly from streams affected by acid rain.

Painted Soldier Fly

A brilliantly metallic coppery-green soldier fly with a slender body and clear wings. It basks on sunlit vegetation and is often seen on hogweed and other umbellifers.

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Did You Know?

Its metallic sheen changes color depending on the viewing angle, a phenomenon called structural coloration.