Seq # 185330060

Phyllonorycter cavella (Zeller, 1846) Species

Last modified: Jan. 20, 2020, 10:49 a.m.

A local and very rare species in Belgium.


Family: Gracillariidae > Subfamily: Lithocolletinae > Genus: Phyllonorycter > Species: Phyllonorycter cavella
Vernacular names
Grote berkenvouwmot (NL), Gold birch midget (EN)
First mention in Belgium
De Crombrugghe G. 1910. Observations entomologiques faites au cours de l’année 1910. — Revue mensuelle de la Société entomologique namuroise 10: 93–95. On page 94. view page




Head greyish brown. Forewing ground colour brown with four white costal and three white dorsal striae. The first costal and dorsal striae sometimes merge in the middle to form a transversal band.

Museum specimens

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Specimens in nature

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Entirely yellow to brownish yellow with a brown head capsule.

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A large tentiform mine on the underside of a leaf. The leaf is very much contorted. About 8 longitudinal folds.
See also and

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White cocoon.

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The eggs are deposited singly. The full-grown larva spins a white cocoon in the mine and pupates within that cocoon. The species hibernates in the pupal stage. Adults rest during day-time on a tree trunk or in the foliage and become active at dusk. They come to light.

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Flight periods

One generation a year: from the end of May till July.

Observed on

Host plant (species):
Betula pubescens and Betula pendula
Host plant (genera):

The caterpillar lives on Betula pendula and B. pubescens.

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