Plant Parasites of Europe

leafminers, galls and fungi

Phyllocnistis xenia

Phyllocnistis xenia Hering, 1936

kent bent-wing

Phyllocnistis xenia mine on Populus canescens

Populus x canescens, Hungary, Mosonmagyaróvár © László Érsek

Phyllocnistis xenia: larva

larva in the mine

Phyllocnistis xenia: larva

larva taken out of the mine

Phyllocnistis xenia: cocoon

cocoon in the leaf margin

Phyllocnistis xenia: pupa

pupa dorsal

Phyllocnistis xenia: pupa

pupa lateral

Phyllocnistis xenia: pupa

pupa ventral

Phyllocnistis xenia mine

Populus alba, Nieuwendam

Phyllocnistis xenia mine

Populus x canescens, Duin en Kruidberg: mine on quite young leaf

Phyllocnistis xenia: pupation site, on Populus alba

Populus alba, Oegstgeest, kasteel Endegeest: pupation site © Camiel Doorenweerd

Phyllocnistis xenia: larva, on Populus alba

larva in the mine


Very long, rather broad, strictly epidermal, corridor that curves in dense loops over the leaf upperside, without ever crossing itself. Frass in a vague continuous central line. The gallery ends upon the leaf margin, where it widens a little, while the leaf margin folds over somewhat. Here pupation takes place, not in a cocoon.

host plants

Salicaceae, monophagous

Populus alba, x canescens, tremula.


Larvae in June – July and August – September (Emmet ao, 1985a).


BE recorded (Phegea, 2009).

NE recorded (Kuchlein & de Vos, 1999a;, 2009).

LUX not recorded (Fauna Europaea, 2009).

distribution within Europe

From Britain to Bulgaria, and from Poland to the Iberian Peninsula and Italy.



See Phyllocnistis labyrinthella about the possible synonymy with Ph. xenia.


The species was described by Hering only in 1936, upon material from southern Spain. This makes one suppose that in that time the species was uncommon, or perhaps even missing, in NW Europa. Also Lüders (1900a) in in his study of the genus Phyllocnistis does not refer to a species living on Populus alba or x canescens.


Adamczewski (1947a), Buszko (1981a, 1992b), Corley, Ferreira, Grundy, ao (2018a), Csóka (2003a), Delplanque (1998a), Deutschmann (2008a), Drăghia (1968a, 1972a), Emmet, Watkinson & Wilson (1985a), Hausenblas (2009a), Hering (1936b, 1957a), Huber (1969a), Huisman, Koster, van Nieukerken & Ellis (2009a), Huisman, Koster, van Nieukerken & Ulenberg (2004a, 2005a), Jaworski (2009a), Kasy (1965a), Klimesch (1957a), Kollár & Hrubík (2009a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Kvičala (1938a), Martynova (1955a), Patočka (2001a), Matošević, Pernek, Dubravac & Barić (2009a), Patočka & Turčáni (2005a), Pelham-Clinton (1976a), Popescu-Gorj & Drăghia (1966a), De Prins (1998a, 2008d), Roweck & Savenkov (2007a), Sefrová (2005a). Sims (2018a), Skala (1951a), Skala & Zavřel (1945a), Sønderup (1949a), Šumpich (2011a), Surányi (1942a), Szőcs (1977a, 1978a, 1981a), Ureche (2010a), van Wielink (2020a).

Last modified 21.iv.2023