Early Thorn
Common NameEarly Thorn
Scientific NameSelenia dentaria
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)35
Wing Patterncryptic
Primary Colorsbrown, cream, reddish-brown
HabitatWoodlands, hedgerows, gardens, scrubland
Geographic RangeEurope, parts of Asia
Host Plantsbirch, alder, sallow, hawthorn, blackthorn, oak
Flight PeriodMarch to May, July to August
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesEggs are laid on host plants. Larvae are twig-like and camouflaged, feeding on leaves. Pupation occurs in a cocoon, often underground or in leaf litter, with the species overwintering as a pupa.
Identification TipsKey features include the strongly scalloped wing margins, the cryptic brown and cream coloration, and the distinct pale cross-band on the forewing, often with a dark central spot. The resting posture with wings held flat is also characteristic.
Description
A medium-sized moth with distinctive scalloped or jagged wing margins, typically mottled brown, reddish-brown, and cream, often with a prominent pale band across the forewing.
