Drepanidae
65.016 Yellow Horned Achlya flavicornis galbanus (Tutt, 1891)
Common England, Wales, Ireland
Achlya flavicornis scotica (Tutt, 1888)
Common Scotland, Inner Hebrides
Similar species:
Forewing: 17 to 20mm
Habitats: Woodland and stands of birch on heathland and moorland.
Habits: The moth is occasionally found on posts or resting on twigs. It sometimes flies in afternoon sunshine and later comes to light, sugar and sallow blossom.
Foodplant: The larva feeds at night on the leaves of Silver Birch and Downy Birch. During the day it rests between two spun leaves. It pupates in a flimsy cocoon in the leaf litter.