Phyllonorycter froelichiella (Zeller, 1839)
Alnus glutinosa, Belgium, prov. Antwerp, Meerhout © Carina Van Steenwinkel
same leaf, underside
the larva is remarkably small in proportion to the space offered by the mine
larva (pathologic: a healthy larva is dark grey over the entire body)
Large, lower-surface tentiform mine, often occupying the entire space between two side veins, from the midrib almost to the leaf margin, Lower epidermis without clear folds.The larva is grey (all other Phyllonorycters on Alder are white). Pupa in a light brown cocoon that is fastened to the roof of the mine. The cocoon is entirely free of frass: all frass is accumulated in the inner corner of the mine. Before ecdysis the pupa works itself half out of the mine; mostly this is through the lower epidermis.
Alnus glutinosa, incana.
Robbins (1991a) also mentions A. cordata.
Larvae in September – October (Emmet, Watkinson & Wilson, 1985a).
BE recorded (Phegea, 2009).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).
LUX not recorded (Fauna Europaea, 2009).
distribution within Europe
Entire Europe, Greece excepted (Fauna Europaea, 2009).
Ahr (1966a), Beiger (1979a), Bengtsson & Johansson (2011a), Buhr (1935a, 1964a), Buszko (1992b), Buszko & Beshkov (2004a), Csóka (2003a), Deschka (1970a), Deutschmann (2008a), Emmet, Watkinson & Wilson (1985a), Gregor & Patočka (2001a), Gregor & Povolný (1950a), Hartig (1939a), Hering (1947a, 1957a), Huber (1969a), Huemer (1986b), Huemer & Erlebach (2003a), Jaworski (2009a), Klimesch (1950c), Klimesch & Skala (1936b), Kollár (2007a), Kollár & Hrubík (2009a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Matošević, Pernek, Dubravac & Barić (2009a), Nel & Varenne (2014a), Nowakowski (1954a), Patočka & Turčáni (2005a), De Prins & Steeman (2011a), Robbins (1991a), Schütze (1931a), Skala (1951a), Skala & Zavřel (1945a), Sønderup (1949a), Szőcs (1977a), Tourlan (1980a), Zoerner (1969a, 1970a).