Body length 5 to 6mm. A small black fly with large reddish eyes and brown tinted wings. There are several similar species requiring dissection to identify. H. vespertina is the commonest species, but nigra and formosa are rarer but very similar.
Often found on low foliage, sometimes near water but in a wide range of habitats.
Status and distribution
Fairly common and widespread throughout Britain. Common in Nottinghamshire and at Netherfield Lagoons.
Best time to see
April to October.