70.235 Dusky Thorn Copyright Martin Evans
 70.235 Dusky Thorn Copyright Martin Evans
 70.235 Dusky Thorn Copyright Martin Evans
 Distribution map Copyright Martin Evans
 Life stages table Copyright Martin Evans  70.235 Dusky Thorn Copyright Martin Evans

Geometridae

70.235 Dusky Thorn Ennomos fuscantaria (Haworth, 1809)

Common

Similar species: The grey-brown shading between the outer cross-line and the outer edge of the forewing should normally be enough to identify this species, although the male August Thorn Ennomos quercinaria may sometimes have areas of red-brown suffusion in the outer part of its wing.

Forewing: 17 to 21mm

Habitats: Deciduous woodland, hedgerows and gardens.

Habits: The moth comes to light.

Foodplant: Ash and probably privets which are accepted in captivity. It pupates amongst spun leaves.

On the European mainland it also feeds on Wild Privet, Alder and birches.