Simulium angustitarse

Although a 'blackfly' this is a rather brown looking species and is about 3 or 4 mm in body length.

Simulium lundstromi

Favours small streams.

It is multivoltine (produces several broods in one year) and so has quite a long flight period.

The eggs, larvae and pupae are found in moving water.

Poorly recorded in Britain.

Status in Leicestershire and Rutland not known.