H.pellucidula is widely present in Europe, from south to north, from Spain to Norway.

It can be found in stream and rivers, it hatches from May to September.

It is a mid sized sedge, with wings between 9 to 14 mm.

Hydropsyche has no ocelli. The antennae have a typical thin dark line that winds up like a spiral

Genitalia, side view

Genitalia, dorsal view

Genitalia, ventral view

Front wing

Hind wing