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- "White underwing" redirects here. Particularly in North America, this may also refer to the related moth Catocala relicta.
(Denis & Schiffermüller, 1775)
The wingspan is 35–45 millimetres (1.4–1.8 in). The moths are on wing from May to July and sometimes again in August/September.
The larvae feed on Quercus species.
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