House Fly

Hydrotaea similis


Over all length 8 to 10mm. A dark-grey fly with pale patches on its 'shoulders' and at the sides of the last segments of its tapering abdomen. There are also some dark lines at the front of the thorax.


Woodland and woodland-edge. Often associated with mammals and their dung.

Status and distribution

Widespread but thinly distributed over much of Britain. Under-recorded in Nottinghamshire and recorded once at Netherfield Lagoons.

Best time to see

May to July.