This psyllid has no genal cones, and is associated with Broom.   The colour of the body is variable from green to brown, but the wings have diagnostic dark streaks. 

Arytainilla spartiophila is also associated with broom, but the wings do not have dark streaks

host

Good quality photographs, preferably of a specimen, showing head and wing venation; note the associated plant species

On broom (Cytisus scoparius) but it will also overwinter on conifers.

All year.

Common and widespread in Britain.

Rarely recorded

https://www.britishbugs.org.uk/homoptera/Psylloidea/Arytaina_genistae.html