Common in rough ground, chalk and limestone grassland, sand-dunes, shingle beaches and gardens throughout the British Isles. In Hampshire and on the Isle of Wight this species is still fairly frequent in places, especially near the coast. Wingspan 48-57 mm. The only confusion species is Chamomile Shark C. chamomillae
, but C. umbratica
has forewing fringes clear and unmarked, while on C. chamomillae
they are cut by dark veins. Larva feeds on flowers and leaves of Beaked, Marsh, Rough and Smooth Hawk's-beard, Mouse-ear Hawkweed and Perennial Sow-thistle, over-wintering as a pupa.