Appearance
The wingspan is 30–34 mm. "Ground-colour whitish grey, in freshly emerged specimens with a very delicate green tinge; the markings somewhat darker brownish grey, but generally quite weakly expressed. Hindwing whitish, greyer distally, sometimes with one or two fairly well-defined grey lines not far from the distal margin, Male narrower-winged than female. — In ab. ''fasciata'' Prout the two central bands are very much darker, sometimes quite deep fuscous, giving the effect of a different species. Frequent in Perthshire. - ''obscurata'' Sp. Schneid., described as a local race in Norway, is perhaps transitional towards ab. ''fasciata'', as the bands and lines are said to be more distinct; the ground-colour, however, is also darkened, which is not the case with ''fasciata''. - ab. ''unifasciata'' Rbl. is a development of ab. ''fasciata'' in which the two bands coalesce in their posterior part, leaving only a pale central part anteriorly, as in ''polycommata''."Food
The larva feed on various trees, including ''Lonicera'', ''Salix'' and ''Betula''.References:
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