Cryptoblabes bistriga is a species of snout moth in the genus Cryptoblabes. It was described by Adrian Hardy Haworth in 1811. It is found in most of Europe, except Portugal, parts of the Balkan Peninsula and Ukraine.
The wingspan is 18–20 mm.The forewings are fuscous, the veins broadly suffused with fuscous-reddish; lines whitish, first at 4, rather thick, straight, second very near termen, serrate; discal dots obscurely indicated; a whitish terminal suffusion. Hindwings light fuscous. Larva pale brown, darker-freckled; dorsal line darker; subdorsal and lateral blackish-brown; spiracular ochreous-whitish, double; a brown black-centred lateral spot on 3 and 12; head light brown: in folded leaves of oak and alder; 9, 10.Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf Keys and descriptionlepiforum.de includes imagesParsons, M. Clancey, C. 2023 A Guide to the Pyralid and Crambid Moths of Britain and Ireland Atropos Publishing Goater, B., Dyke . G. and Tweedie, R. 1986 British Pyralid Moths: A Guide to Their Identification
They are on wing from late June to July.UKMoths
The larvae feed on the leaves of various trees, including Quercus, Alnus and Myrica species. They feed from within a folded leaf.
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