Netted Pug Eupithecia venosata
Wingspan 17-22 mm.
Widely distributed, though local, throughout most of Britain, this rather attractive species inhabits sea-cliffs, rocky slopes and chalk or limestone areas.
It flies in May and June, in a single generation, from dusk into the night.
The larvae feed in the seed capsules of bladder campion (Silene vulgaris), or sea campion (S. maritima) near the coast.
Several more sombre-coloured subspecies have been identified in the Northern Isles.