Last modified: Nov. 30, 2022, 11:02 a.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.
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.