Length 14 to 18 mm. A fairly large uniformly orange-brown caddis fly with some paler speckling.

Micropterna sequax.

Around ditches and temporary streams.

Adult: Late May to August. It is attracted to light.

Breeds in ditches and streams that dry up over summer. It lays before the water vanishes and the species passes the summer as newly hatched larvae in the damp bottom.

Widespread and fairly frequent in Britain.

Fairly frequent in Leicestershire and Rutland.