British Wildlife Wiki
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Leuctra fusca is a species of Stone Fly found in Britain.

This species is widespread in Britain, inhabiting streams and lakes. This species flies from April till November in Britain, but in Southern Europe it flies all year round. There are several similar species. This species and some similar species are known as Needle Flies as they are long and slim.

Leuctra fusca TL

When Leuctra fusca is active

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