Sat 2013-06-15 
Another male hoverfly of the Cheilosia albitarsis group, this time with all yellow halteres. Probably another Cheilosia albitarsis or Cheilosia ranunculi.
Photo taken in Whiteknights Park, Reading, UK, on 2012-05-18.
Fri 2013-06-14 
A male hoverfly of the Cheilosia albitarsis species group, probably Cheilosia mutabilis (Diptera: Syrphidae). Cheilosia albitarsis or Cheilosia ranunculi (Diptera: Syrphidae). Initially I thought that it might be Cheilosia mutabilis because of the black on the haltere, but Roger Morris pointed out in the comments below that this is not necessarily diagnostic.
Dark or partly dark halteres distinguish C. mutabilis from C. albitarsis and C. ranunculi, the other two members of the group.
Photos taken in Whiteknights Park, Reading, UK, on 2012-05-18.
Thu 2013-06-13 
Back in early May I saw this pair of mute swans (Cygnus olor) perform this little 'dance' just after mating.
Photos taken in Whiteknights Park, Reading, UK, on 2013-05-06.
Wed 2013-06-12 
A female Ichneumon wasp (Hymenoptera: Ichneumonidae). I have no idea of the genus nor species.
Photos taken in Whiteknights Park, Reading, UK, on 2013-06-01.
Tue 2013-06-11 
What I think are a pair of Playpalpus sp (Diptera: Hybotidae) mating.
Photos taken in Whiteknights Park, Reading, UK, on 2013-06-01.
