Another photo from the height of last summer: the dung fly Cordilura albipes (Diptera: Scathophagidae). This specimen was in a great hurry to get away from me and this was the only photo I managed to get of it. I have not seen this species before or since. [Note added 2016-10-07: it is actually quite common - in the years 2014-1016 I collected 15 specimens]
Photo taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2009-07-27.