Mirid bug - Psallus sp. 1f
A mirid bug, probably Psallus genus. One of the species that looks like Psallus varians (there are several similar species found on oak). This bug was under an oak when I found it. Stoke Charity, Winchester, Hampshire, UK, 13th June 2010.
OS Grid Ref: SU 486 351 but Latitude and Longitude inexact.