A small yellow leafhopper, with a slightly darker scutellum and faint darker shading of the cells at the end of the forewings, associated with a wide variety of trees.

There are many similar small yellow leafhoppers

Males

We recommend that identification is confirmed by dissection of males.  Also note host tree species

Deciduous trees

common (ref: UK Auchenorrhyncha checklist 2021)

rarely recorded; probably overlooked

https://www.britishbugs.org.uk/homoptera/Cicadellidae/Alnetoidea_alneti.html