The increase in temperature yesterday, which produced overnight temperatures of around 10 Centigrade got the moths flying again; 7 December Moths,13 Mottled Umber, 14 Scarce Umber, Feathered Thorn, Red-green Carpet and this Northern Winter Moth which is my first this winter. I think it is best separated from Winter Moth by the paler grey, rather than brown upper forewing colour, whitish hindwing and slightly larger size. The females are flightless.
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