White-spotted Pug Eupithecia tripunctaria
Wingspan 17-21 mm.
This species is widely distributed throughout Britain, except the north of Scotland, and can be locally common.
It occupies damp areas and woodland, and has two generations, with adults on the wing in May and June and then in July and August.
The larvae are yellowish green, and attractively marked with brown, and feed on the flowers and seeds of wild angelica (Angelica sylvestris) and hogweed (Heracleum). The spring generation also feeds on the flowers of elder (Sambucus nigra).