Overall length 5mm. One of several very similar species. The pattern of black marks on the wings are indicative of species. This species is heavily marked on the wings with the black extending forwards on the hind edge of the wing.
Well vegetated areas with yellow composites such as Hawksbeard, Cat's-ear and Sow Thistle, where the larvae form galls in the flower-heads.
Status and distribution
Fairly common and widespread in Southern Britain, uncommon further north. Fairly Common in Nottinghamshire and recorded once at Netherfield Lagoons.
Best time to see
April to August.