Distribution and Abundance: Fairly common.

Primary Habitat: Woodland.

Flight Period: Single brooded in late October and November.

Observations: Due to the moth’s similar appearance to the November Moth (E. dilutata) and Pale November Moth (E. christyi), there has almost certainly been a confusion of records between the three species. They are difficult to separate by wing markings alone and are more conclusively identified by the genitalia differences in the males. Notwithstanding this reference to literature can sometimes resolve the matter, particularly having regard to habitat and flight time. The Autumnal Moth probably occurs wherever its foodplants birch or alder are well established. There are no records from the woodland Fineshade Rothamsted light trap in the eight years to 2000 although the moth occurs in the large area of birch less than half a mile away. This seems to suggest that the species does not wander extensively.

L.O.N.: Unrecorded.

First Record: 1882, Hull & Tomalin.