Phyllonorycter geniculella (Ragonot, 1874)
sycamore midget
Acer pseudoplatanus, Flevoland, Reve-Abbertbos © Hans Jonkman: mine on the lamina
same mine, underside (with drops of water inside)
mine along the leaf margin
same mine, underside
Acer pseudoplatanus, Amsterdam; lighted from behind
Acer pseudoplatanus, Nieuw-Bergen; opened mine
Acer pseudoplatanus, Castricum; very young mine with, right picture, the iridescent egg shell at the start
mine
The mine begins as an inconspicuous lower surface epidermal corridor, beginning at an iridescent egg shell. This corridor is followed, and mostly replaced, by a relatively small, lower-surface, tentiform mine with many weak folds. When the mine happens to lie close to the leaf margin the leaf may fold downwards over the mine. Pupa in the mine, dark brownish black, in a loosely spun cocoon. Frass heaped in a corner of the mine.
hostplants
Sapindaceae, narrowly monophagous
Acer pseudoplatanus.
Buhr (1935a) additionally mentions Acer saccharinum.
phenology
Larvae in May – July, and September – October.
BENELUX
BE recorded (Phegea, 2009).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).
LUX recorded (Ellis: Kautenbach).
distribution within Europe
From Sweden to the Pyrenees, Italy, and Bulgaria, and from Britain to South Russia (Fauna Europaea, 2009).
larva
pop
synonyms
Lithocolletis geniculella; L. dahmiella (Sorhagen, 1900); Lithocolletis, Phyllonorycter acernella: auct.
references
Ahr (1966a), Bengtsson & Johansson (2011a), Buhr (1935a, 1964a), Buszko (1992b), Csóka (2003a), Deschka & Wimmer (2000a), Deutsch (2012a), Deutschmann (2008a), Emmet, Watkinson & Wilson (1985a), van Frankenhuyzen & Houtman (1972a), van Frankenhuyzen, Houtman & Kabos (1982a), Gregor & Patočka (2001a), Gregor & Povolný (1950a), Haase (1942a), Hering (1931a, 1934b, 1957a, 1961a), Huemer (1986b), Huemer & Erlebach (2003a), Jaworski (2009a), Kasy (1983a, 1987a), Kollár (2007a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Maček (1999a), Matošević, Pernek, Dubravac & Barić (2009a), Nel & Varenne (2014a), Nowakowski (1954a), Patočka & Turčáni (2005a), Plóciennik, Pawlikiewicz & Jaworski (2011a), Robbins (1991a), Sefrová (2005a), Skala (1941a), Sønderup (1949a), Starý (1930a), Szőcs (1977a, 1978a, 1981a), Tomov & Krusteva (2007a), Wieser (2005a).