A small bug associated with Field Maple, dark reddish-brown or orange-brown with a red cuneus, golden scales and dark-red spotted femora.  Males often darker than females, which tend to be larger and wider.  

Other species of Psallus

This is the only Psallus associated with Field Maple, but to confirm identification, males should be dissected.  Photograph from above and below, photograph aedeagus of male; note tree species from which it was collected.

Field Maples

late May/June

Widely scattered (UK checklist 2021 - https://www.britishbugs.org.uk/systematic_het.html )

Rarely recorded