Tachinid Fly

A female Macquartia grisea (Diptera: Tachinidae).

Photos taken in the field below Chazey Wood, near Caversham, UK, on 2013-05-11.

Bibionid Fly

A male Dilophus febrilis (Diptera: Bibionidae).

Photo taken in the field below Chazey Wood, near Caversham, UK, on 2013-05-11.

Anthomyiid Fly

What I think is a female Anthomyia plurinotata (Diptera: Anthomyiidae).  This identification has been confirmed by Johanna van Erkelens here at Diptera.info. This species is apparently not on the UK checklist but it is on the Belgian one so it wouldn't be a big jump for it to get here.

Photo taken in Whiteknights Park, Reading, UK, on 2013-05-12

Blowfly

A rather docile male blowfly, probably a Bellardia sp (Diptera: Calliphoridae).  I captured this specimen and later took the following photos (before I released it again):

These show the greenish abdomen more clearly.

First photo and specimen taken in the field below Chazey Wood, near Caversham, UK, on 2013-05-11.

Hybotid Fly

A female Hybos sp, possibly Hybos culiciformis (Diptera: Hybotidae).

Photos taken in Whiteknights Park, Reading, UK, on 2012-10-12.