Plant Parasites of Europe

leafminers, galls and fungi

Phyllocnistis extrematrix

Phyllocnistis extrematrix Martynova, 1955

on Populus

Phyllocnistis extrematrix on Populus nigra

Populus nigra, Hungary, Mosonmagyaróvár, 23.vii.2018 © László Érsek

Phyllocnistis extrematrix on Populus nigra

final part of the gallery, entering a leaf

Phyllocnistis extrematrix on Populus nigra

old, worn gallery

Phyllocnistis extrematrix

Populus x canadensis, Belgium prov. West Flanders, Boezinge, Fort Saint Nicolas, 27.ix.2019 © Maarten Willems

Phyllocnistis extrematrix

gallery over the petiole

Phyllocnistis extrematrix: mine on Populus x canadensis

pupation site


long gallery in the bark of young shoots; only towards the end the gallery, via the petiole, enters the leaf, and pupation takes place under a folded leaf margin.

host plants

Salicaceae, monophagous

Populus balsamifera, x canadensis, nigra, trichocarpa.


Probably several generations; hibernation as imago.


Found in the Netherlands in 2018 (Prick & van Nieukerken).

distribution within Europe

France, Iberia, Czechia, Slovakia, Romania, Kazakhstan (Laštůvka & Laštůvka).


Martynova (1955a), Laštůvka & Laštůvka (2014a), Liška, Šumpich, Laštůvka, ao (2014a), Liška, Vávra, Laštůvka, ao (2018a), Prick & van Nieukerken (2018a), Schulz & Fähnrich (2018a), Steeman & Sierens (2019a).

Last modified 8.v.2022