Seq # 185410020

Phyllocnistis labyrinthella (Bjerkander, 1790) Species

Last modified: April 10, 2021, 2:12 p.m.

A very local and rare species in Belgium. Formerly only recorded from BR but during the last decennia also found in several localities in Flanders.


Family: Gracillariidae > Subfamily: Phyllocnistinae > Genus: Phyllocnistis > Species: Phyllocnistis labyrinthella
Vernacular names
Labyrintmot (NL)
First mention in Belgium
De Prins W. 1983a. Systematische naamlijst van de Belgische Lepidoptera. — Entomobrochure 4: 1–57. On page 10.




Head white; forewing ground colour silvery white, a little darker with yellowish hue in the apical area; five ochreous to brown costal striae of which the second one is prolonged to the dorsum, thus forming a narrow transversal band; a black spot in the apical area from which two dark brown hooks depart into the cilia, forming a horizontal "V".

Museum specimens

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Specimens in nature

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A very long, rather broad, winding corridor on the upperside of a leaf; underside mines occur regularly. The mine never crosses itself. A central continuous dark brown and sharply defined frassline, distinguising this species from Phyllocnistis xenia.
See also and

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No real cocoon, just a flimsy spinning.

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The egg is mainly oviposited on the upperside of a leaf, but underside mines occur not infrequently.
Pupation under a silken membrane at the end of the mine under a folded leaf margin.
Adults are active at dusk. The species hibernates in the adult stage.

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Flight periods

Two generations a year: June–July and from August, hibernating till May.

Observed on

Host plant (species):
Populus tremula and Populus alba
Host plant (genera):

The species is monophagous on Populus, mainly Populus tremula, but it has also been recorded on Populus alba.

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Forest edges, open places in forests; parks and public gardens.

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