Sat 2011-04-23 
An orange dung fly with particularly long spines on its front legs: probably Norellia spinimanum (Diptera: Scathophagidae). See also here.
Photo taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2011-04-16.
Fri 2011-04-22 
A scarlet lily beetle, Lilioceris lilii (Coleoptera: Chrysomelidae). Similar, at first glance, to the black-headed cardinal beetle, Pyrochroa coccinea.
Photo taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2011-04-16.
Thu 2011-04-21 A female Bibio anglicus (Diptera: Bibionidae). As well as the orange thorax, the females have a yellowish abdomen:
The males are all black, as shown in this photo of a mating pair:
Photos taken in the field below Chazey Wood, near Caversham, UK, on 2011-04-17.
Wed 2011-04-20 
A rather spectacular crane fly, a female Ctenophora flaveolata (Diptera: Tipulidae). According to Alan E. Stubbs (Provisional Atlas of the long-palped craneflies (Diptera: Tipulinae) of Britain and Ireland, 1992), this is a relatively rare species, it is probably associated with dead wood, and is normally on the wing in May.
Photo taken in Chazey Wood, near Caversham, UK, on 2011-04-17.
Tue 2011-04-19 
A male orange-tip butterfly, Anthocharis cardamines (Lepidoptera: Pieridae). The females do not have the orange wing-tips, and are just black and white.
Photo taken in Whiteknights Park, Reading University grounds, Reading, Uk, on 2011-04-15.
