Distribution and Abundance: Common.

Primary Habitat: Woodland.

Flight Period: Single brooded in March and April.

Observations: The moth does not seem to stray too far from its larval foodplant the birch and due to this habit and its early flight time is under recorded. A single actinic light trap run overnight on 19 March 1988 in a birch wood within Geddington Chase attracted in excess of one hundred examples of this moth. Prior to this, it had not been seen there despite much light trapping and recording over the years.

L.O.N.: Unrecorded.

First Record: 1882, Hull & Tomalin.