Length 6-7mm. Predominantly brown with white spot in clavus, a pale band in the apical half of the wings and dark veins. Thyridia dark, contrasting with a mostly unmarked face. Pronotum darker in posterior half.

Other Populicerus species.

Close examination of a specimen is needed.  Provide photographs taken from top, side and face; and note the host plant. 

On poplars, especially Aspen (Populus tremula) and Grey Poplar (P. x canescens).

Between June and October.

Common (ref.: UK Auchenorrhyncha checklist 2021)

Rarely recorded

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