Green Muscid Fly

A metallic green Muscid fly, probably a female Eudasyphora cyanella (Diptera: Muscidae).
Photos taken in Barnard Castle, County Durham, UK, on 2010-08-07.
A metallic green Muscid fly, probably a female Eudasyphora cyanella (Diptera: Muscidae).
Photos taken in Barnard Castle, County Durham, UK, on 2010-08-07.
My second Tachinid fly of the year: Gymnocheta viridis (Diptera: Tachinidae). This is the only greenbottle fly with long spines on its abdomen that can often be seen sunning itself on tree trunks in the spring time in the UK (Chrysosomopsis aurata = Chrysocosmius auratus is similar but doesn't appear until the summer, see here).
Photo taken in the field below Chazey Wood, near Caversham, UK, on 2012-03-19.
My first Tachinid fly of the year: probably Macquartia grisea (Diptera: Tachinidae), a male. According to two authorities on Tachinid flies, this species does not normally appear until the end of April, so this individual was about 6 weeks early.
Ten days later I came across a female of the same species:
This was on the same bush as I had seen the male. Note the big difference in the gap between the eyes.
And this is the female from a slightly different angle:
I have to admit that on both days I had assumed that I was photographing a fairly standard Muscid fly, and I didn't spot the long spines in the abdomen until I had got home and had a chance to look at the photos on my computer.
Photos taken in Whiteknights Park, Reading University grounds, Reading, UK on 2012-03-11 (male) and 2012-03-21 (female).
A male Graphomya maculata = Graphomyia maculata (Diptera: Muscidae).
Photos taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2010-07-22.
A female Graphomya maculata = Graphomyia maculata (Diptera: Muscidae).
Photos taken in Whiteknights Park, Reading, UK, on 2010-10-16.