The wingspan is 35–45 mm; the dark brown forewings being marked with dark-centred white stigmata which do look rather like the number 80. The hindwings are grey. The species flies from May to July[1] and is attracted to light and sugar.
The grey and white larva feeds on poplar and aspen. The species overwinters as a pupa.
Subspecies
Tethea ocularis ocularis
Tethea ocularis ocularis amurensis (Warren, 1912) (Russian Far East, north-eastern and northern China, Mongolia, Korea)
03(js).jpg){kind=small}