Dark Marbled Carpet
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Dysstroma citrata
Common & widespread in Britain.
Adult Larvae are light green with two white dorsal lines.
The Larvae feeds on a range of bushes & plants including Sallow & Bilberry.
The ground colour of the forewings may show whitish, grey, black or brown tints but the colour is extremely variable and there are strongly darkened forms.
Characteristic is the protruding post medial line on the front wings, which usually reaches the post discal wavy line or interrupts it.
Very similar to Dysstroma truncata.
Adults are on wing from July to August, flying at night.