Thu 2013-08-15
A female Sphaerophoria sp (Diptera: Syrphidae). It is not possible to identify the species of females in this genus from photographs alone.
Photo taken in Whiteknights Park, Reading, UK, on 2013-08-10.
Wed 2013-08-14 
A black and yellow sawfly, probably Tenthredo distinguenda (Hymenoptera: Tenthredinidae).
Photos taken in Whiteknights Park, Reading, UK, on 2013-08-03.
Tue 2013-08-13
A female Eustalomyia hilaris (Diptera: Anthomyiidae).
In this species the line that runs along the top of the thorax broadens to form a blob at its hind end:
Photos taken in the Wilderness, Whiteknights Park, Reading, UK, on 2013-08-10.
Mon 2013-08-12 
Nowickia ferox (Diptera: Tachinidae).
Photos taken in the Wilderness, Whiteknights Park, Reading, UK, on 2013-08-10.
Sun 2013-08-11 
A male Musca autumnalis (Diptera: Muscidae).
The males of M. domestica are similar but on the top of the head the gap between their eyes is larger. While I have probably seen several hundred M. autumnalis over the past few years, I have not yet seen a single fly that was recognizably M. domestica.
This picture more clearly shows the orange sides of the abdomen:
Photos taken in Whiteknights Park, Reading, UK, on 2013-08-03.
