Dolichopus notatus

Another common fly found around the patch so having become familiar with Dolichopodidae I thought I'd give it a go. Similar in appearance at first glance to Dolichopus ungulatus it differs by having pale post ocular hairs, so because of this I went through the keying out process reaching the conclusion of Dolichopus notatus.

Here is the keying out process:
1. Discale vein not forked
2. No antennal projection from segment 2 into segement 3
3. Acrostichal bristles present
15. Acrostichal bristles biserial
27. Costa without thickening
28. 1st antennal segment hairy
29. Hind coxa with 1 bristle at the apex
30. Hairless arista
31. Hind metatarsus with bristles
= Dolichopus

1. Yellow femora
3. Lower postoculars pale
19. All tarsi simple
31. Hind femur without fringe of long hairs beneath
39. Front tibia with 1 apicoventral bristle
40. Basal antennal segments normal, antennae not longer than head
41. Discal vein without a hang-vein
43. Genital lamella squamal fringe black (although the image below shows some pale fringing)
45. Brown face and apical fourth of hind tibia black

Genital lamella

Dolichopus notatus