Sawfly

A Rhogogaster sp (Hymenoptera: Tenthredinidae).

Photo taken in Whiteknights Park, Reading, UK, on 2012-05-27.

Sawflies

From 4 years ago: a pair of Tenthredo mesomela (Hymenoptera: Tenthredinidae) mating.

Photo taken in Whiteknights Park, Reading, UK, on 2010-06-20.

Bibionid Fly

From 4 years ago: a male Bibio lanigerus (Diptera: Bibionidae).

Photos taken in Whiteknights Park, Reading, UK, on 2010-05-06.

Heleomyzid Fly

An orange fly with unusually long aristae, probably a male Eccoptomera sp, possibly Eccoptomera longiseta (Diptera: Heleomyzidae), but there is at least one other member of that genus with long aristae. [Note added 2018-08-12: identified as Eccoptomera microps using the key of Gorodkov, 1989]

A close-up view of the side of the head:

The side of the thorax:

And a dorsal view of the thorax:

Specimen taken in Dinton Pastures, Winnersh, near Reading, UK, on 2014-10-11.

Fanniid Fly

A female Fannia postica (Diptera: Fanniidae).  Identified using the key of Rozkošný, Gregor and Pont, 1997.

A close-up -of the side of the head:

A frontal view of the head:

And a dorsal view of the thorax:

Specimen taken in Whiteknights Park, Reading, UK, on 2014-10-11.