Phyllocnistis xenia Hering, 1936
Populus x canescens, Hungary, Mosonmagyaróvár © László Érsek
larva in the mine
larva taken out of the mine
cocoon in the leaf margin
Populus alba, Nieuwendam
Populus x canescens, Duin en Kruidberg: mine on quite young leaf
Populus alba, Oegstgeest, kasteel Endegeest: pupation site © Camiel Doorenweerd
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.
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; Microlepidoptera.nl, 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), Csóka (2003a), Delplanque (1998a), Deutschmann (2008a), Drăghia (1968a, 1972a), Emmet, Watkinson & Wilson (1985a), Hering (1936b, 1957a), Huber (1969a), Huisman ao (2009a), 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), Sefrová (2005a). Sims (2018a), Skala (1951a), Skala & Zavřel (1945a), Sønderup (1949a), Surányi (1942a), Szőcs (1977a, 1978a, 1981a), Ureche (2010a).