Plant Parasites of Europe

leafminers, galls and fungi

Phyllonorycter harrisella

Phyllonorycter harrisella (Linnaeus, 1761)

white oak midget

Phyllonorycter harrisella mine

Quercus robur, Duin en Kruidberg

Phyllonorycter harrisella mine

lighted from behind

Quercus robur, St Gerlach; opened mine


Rather small, lower-surface tentiform mine, less than 14 mm long, with one strong fold in the lower epidermis. Pupa in a tough white cocoon that is attached to both the floor and roof of the mine. Before ecdysis the pupa half emerges from the underside of the mine.

host plants

Fagaceae, monophagous

Quercus cerris, dalechampii, faginea, frainetto, macranthera, petraea, pontica, pubescens, robur.


Larvae in July and September – October (Hering, 1957a).


BE recorded (Phegea, 2009).

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

LUX recorded (Fauna Europaea, 2009).

distribution within Europe

Europe, except the Balkan Peninsula and the Mediterranean Islands (Fauna Europaea, 2009).



Lithocolletis harrisella; Glyphipteryx, Lithocolletis, Phyllonorycter cramerella (Fabricius, 1777).

parasitoids, predators

Achrysocharoides latreillii; Cirrospilus diallus; Euderus viridis.


The biology is discussed by Miller (1973a).

According to Emmet ao (1985a) in the summer generation the frass is dispersed in the mine, and the cocoon is free of frass; in the autumn generation the frass is incrusted in the sides and rear of the cocoon, giving it a U-shaped outline when lighted from behind (see also Harper & Langmaid (1978a)). The picture above was made in mid-June and illustrates that in the Netherlands already in the summer generation almost all frass may be incorporated in the cocoon.


Bengtsson & Johansson (2011a), Buhr (1936a), Buszko (1992b), Corley, Marabuto & Pires (2007a), Corley, Rosete, Marabuto ao (2014a), Deutsch (2012a), Deutschmann (2008a), Emmet (1975b), Emmet, Watkinson & Wilson (1985a), van Frankenhuyzen Houtman & Kabos (1982a), ffennell (1975a), Gregor (1952a), Gregor & Patočka (2001a), Harper & Langmaid (1978a), Hartig (1939a), Hering (1934a, 1957a), Huemer (2012a), Huemer & Erlebach (2003a), Jaworski (2009a), Klimesch (1950c), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Lhomme (1934d), Maček (1999a), Matošević, Pernek, Dubravac & Barić (2009a), Miller (1973a), Nel & Varenne (2014a), Nowakowski (1954a), Patočka & Turčáni (2005a), De Prins, 1998a), Robbins (1991a), Schütze (1931a), Sefrová (2005a), Sønderup (1949a), Stolnicu (2007a), Szőcs (1977a, 1978a, 1981a), Tomov & Dimitrov (2007a), Tourlan (1980a), West (1985a), Yefremova & Kravchenko (2015a).

Last modified 31.x.2023