A Barkfly and maybe some Barkfly Nymphs

From a week or two ago, Valenzuela flavidus, a barkfly (family Caeciliusidae, order Psocoptera).  When I was taking the photo, I didn't actually see the nymphs and the nursery.  I am not sure if the nymphs are the same species as the adult, but they do seem to be the right shape for young barkflies (see here).

A couple of month ago I photographed what I thought might be a barkfly (see here), but I have recently identified that as a lime aphid.

Photo taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2009-08-31.

Update on Thu 2009-09-24 by Tristram Brelstaff

Here is another photo of an adult, which shows the wing venation more clearly.

Photo taken in Whiteknights Park, Reading University grounds on 2009-09-24.