|Lunar marbled brown|
The wingspan is 35–40 mm. The fore wings are dark fuscous, almost blackish, with a short white line near the base; the central third is white clouded with the ground colour and limited by white edged black wavy lines. There is a black crescent just above the centre of the wing. Hind wings smoky grey with a pale curved line.Drymonia dodonaea is very similar.
The moth flies from April to June depending on the location.
- South R. (1907) The Moths of the British Isles, (First Series), Frederick Warne & Co. Ltd., London & NY: 359 pp. online (as chaonia (Denis & Schiffermüller, 1775))
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