Appearance
The wingspan is 24–30 mm. The forewings are greyish-brown with a variable pattern of scalloped blackish lines. The greyish band in the antemedial area usually reaches the costa and the terminal line usually consists of a blurred pair dots. Adults have been recorded on wing mainly in April to July.Naming
*''Hydriomena divisaria divisaria''⤷ ''Hydriomena divisaria brunnescens'' McDunnough, 1954
⤷ ''Hydriomena divisaria frigidata''
Food
The larvae feed on ''Abies balsamea'', ''Pinus'' and ''Picea'' species.References:
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