The larvae of ssp. demaryella feed on Betula nana, Betula pendula, Betula pubescens and Corylus avellana, while the larvae of ssp. castaneae feed on Acer species and Castanea sativa. They mine the leaves of their host plant. The mine has the form of a short, full depth corridor, often along the midrib or a thick vein. Most of the mine has a thick frass line. The larvae leave the mine and engage in window-feeding. Later, it starts eating holes in the leaf. Larvae can be found from June to July. Young larvae are pale yellow with a darker head while older larvae are grey green. Pupates takes place in a greyish ochreous cocoon spun amongst debris.
- Bucculatrix demaryella demaryella
- Bucculatrix demaryella castaneae Klimesch, 1950 (Austria, Italy, Switzerland)
- "Bucculatrix demaryella (Duponchel, 1840)". 2.6.2. Fauna Europaea. August 29, 2013. Retrieved November 9, 2013.
- A revision of the Japanese species of the family Bucculatricidae (Lepidoptera)
- microlepidoptera.nl Archived February 12, 2011, at the Wayback Machine.
- Lepidoptera of Belgium
- ssp. demaryella at bladmineerders.nl
- ssp. castaneae at bladmineerders.nl[permanent dead link]
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