A rare and local species throughout Belgium.
larva lives on various
deciduous trees with a strong preference for Fagus. Hibernates as egg on a twig or on bark.
adults fly from early October till mid November. They are
attracted to light and occasionally to sugar.
Poorly-marked specimens are best identified by reference to the
genitalia, but characteristic individuals are identified by; discal
spot is variable in shape and moderately distinct. The post-median
fascia is roughly curved (not sharply angled) around the discal spot in
a 'lazy L shape', the angle about 110°. This species
is smaller and paler than the 2 other Epirrita species and favours more mature woodland.
Namur, Lavaux-Ste-Anne, 14 October 2005.
(Photo © Chris Steeman)