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.
Sat 2013-08-10 
A female Myathropa florea (Diptera: Syrphidae). This species is fairly common at the moment.
Photos taken in Whiteknights Park, Reading, UK, on 2013-08-03.
Fri 2013-08-09 
Hoverfly Syritta pipiens (Diptera: Syrphidae) feeding on a knapweed flower-head (Centaurea sp).
Photo taken in the Wilderness, Whiteknights Park, Reading, UK, on 2013-08-04.
Thu 2013-08-08 
A female Myolepta dubia (Diptera: Syrphidae),
Photos taken in the Wilderness, Whiteknights Park, Reading, UK, on 2013-08-04.
Wed 2013-08-07 
A female Urophora quadrifasciata (Diptera: Tephritidae) on a knapweed seed-head (Centaurea sp). These flies are really quite small: I probably wouldn't notice them if it wasn't for the bold markings on the wings.
Photos taken in Whiteknights Park, Reading, Uk, on 2013-08-03.
