Seq # 185330550

Phyllonorycter tenerella (de Joannis, 1915) Species

Last modified: April 10, 2021, 1:58 p.m.

A widespread and locally common species in Belgium.


Family: Gracillariidae > Subfamily: Lithocolletinae > Genus: Phyllonorycter > Species: Phyllonorycter tenerella
Vernacular names
Haagbeukvouwmot (NL), Hornbeam midget (EN)
Phyllonorycter tenella (Zeller, 1846), nec (Duponchel, 1843)
First mention in Belgium
De Fré Ch. 1858. Catalogue des Microlépidoptères de la Belgique. — Annales de la Société entomologique belge 2: 45–162. On page 155 (as tenella). view page




Head white; forewing ground colour faintly golden ochreous; white pattern consisting of a broad and long basal streak, reaching till beyond the middle of the wing; four costal and two dorsal striae, finely edged with ochreous or brown scales basally; a small patch of black scales in the apical area.

Museum specimens

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Specimens in nature


A narrow, elongated, tentiform mine on the underside of a leaf, situated between two secondary veins; one strong, central longitudinal fold, greenish in the earlies stages, brown later on. The last instar applies so much spinning that the mine is contorted into a tube. The dark frass is concentrated either in a corner of the mine or at its sides.
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Not a real cocoon, but some flimsy spinning, most of the time close to the main vein.

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The species hibernates in the pupal stage, between leaf litter on the ground. After emergence of the adult, the pupal skin protrudes through the mine.

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Flight periods

Two generations a year: May and July–August.

Observed on

Host plant (species):
Carpinus betulus

The species is monophagous on Carpinus betulus. It has, however, also been recorded from Ostrya carpinifolia which is sometimes planted in gardens and parks as an ornamental plant.

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Parks, forest edges.

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