Last modified: March 21, 2024, 6:24 p.m.
Status is insufficiently known, but is the rarest of the 3 Epirrita species. In extensive beech forests the species can be locally fairly common.
Native
Wingspan 34–40 mm.
Although some sources claim that you can identify the 3 Epirrita species by the markings on the front wing, this is only a guide and there is much overlapping and therefore not certain.
If you want to be 100% certain, then examination of the genitalia is necessary. This only applies to males, the female genitals are too variable to identify.
Hibernates as egg on a twig or on bark. They are attracted to light and occasionally to sugar.
The adults fly from early October till mid-November.
The larva lives on various deciduous trees with a strong preference for Fagus and young Betula trees
It inhabits mature deciduous woodland.