Length 4.5 to 6 mm. A greenish yellow leafhopper with four small black spots in a line running running across the vertex, two small spots on the pronotum, and some markings on the face.  

Good quality field photos or photos of a specimen, showing black spots on vertex

On various grasses.

Adult: June to August.

Local (ref.: UK Auchenorrhyncha checklist 2021)

Uncommon

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