70.239 Purple Thorn Copyright Martin Evans
 70.239 Purple Thorn Copyright Martin Evans
 70.239 Purple Thorn female summer form Copyright Martin Evans
 70.239 Purple Thorn female typical resting pose Copyright Martin Evans
 70.239 Purple Thorn female typical resting pose Copyright Martin Evans
 70.239 Purple Thorn and Lunar Thorn Scottish form Copyright Martin Evans
 70.239 Purple Thorn larva 4mm Copyright Martin Evans
 70.239 Purple Thorn larva 8mm Copyright Martin Evans
 70.239 Purple Thorn larva 14mm Copyright Martin Evans
 70.239 Purple Thorn larva 22mm Copyright Martin Evans
 70.239 Purple Thorn larva 30mm Copyright Martin Evans
 70.239 Purple Thorn larva 36mm Copyright Martin Evans
 Distribution map Copyright Martin Evans
 Life stages table Copyright Martin Evans
 Life stages table Copyright Martin Evans  70.239 Purple Thorn Copyright Martin Evans

Geometridae

70.239 Purple Thorn Selenia tetralunaria (Hufnagel, 1767)

Common

Similar species: The darker Scottish form of Lunar Thorn Selenia lunularia is darker than the southern moths and could be mistaken for Purple Thorn but has smaller central wing crescents.

Forewing: 17 to 23mm

Habitats: Deciduous woodland, scrub and gardens.

Habits: The moth comes to light.

Foodplant: The larva feeds on oaks, Blackthorn, Hawthorn, Ash, limes, Alder, Downy Birch, Silver Birch, Hazel and other deciduous trees. It pupates just below the soil surface.