Plant Parasites of Europe

leafminers, galls and fungi

Parornix devoniella

Parornix devoniella (Stainton, 1850)

hazel slender

Parornix devoniella mine

Corylus avellana, Amsterdam

Parornix devoniella

Corylus avellana, Nieuwendam; mine and leaf fold


Small, rectangular mine between two side veins (triangular when in a vein axil). The lower epidermis is brown. The larva begins feeding in the spongy parenchyma. Later also the palissade parenchyma along the outline of the mine is consumed. Finally all palissade parenchyma is eaten away, and the mine has become full depth and very transparant. Most frass in a corner of the mine. After leaving the mine the larve lives in a folded leaf margin.

host plants

Betulaceae, monophagous

Corylus avellana, colurna, maxima.

The switch from Betulaceae to Rosaceae has been made quite often. It is not surprising therefore that the species is found now and then on Cotoneaster.


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


BE recorded (Phegea, 2010).

NE recorded (Kuchlein & de Vos, 1999a;, 2010).

LUX recorded (Fauna Europaea, 2010).

distribution within Europe

Europe, excluding the Balkan and the Mediterranean Islands (Corely ao, 2006a; Fauna Europaea, 2010).




Ornix devoniella; Ornix, Parornix avellanella (Stainton, 1854); Parornix cotoneastri (Caradja, 1920).


When the mine of Phyllonorycter coryli lies close to the leaf margin, it may deceivingly resemble the leaf fold of devoniella. In coryli the frass forms a compact clump, while in devoniella it takes the shape of long cigar. Moreover, the larva of devoniella bears four black spots on its pronotum.

Parornix devoniella larva

Corylus avellana, Nieuwendam, opened leaf fold


Ahr (1966a), Baldizzone (2004a), Beiger (1979a), Bengtsson & Johansson (2011a), Biesenbaum (2010a), Braggion (2013a), Buhr (1935a, 1964a), Buszko (1992b), Buszko & Beshkov (2004a), Corley, Marabuto, Maravalhas ao (2009a), Corley, Maravalhas & Passos de Carvalho (2006a), Deschka & Wimmer (2000a), Deutsch (2012a), Deutschmann (2008a), Dimic (1971a), Emmet, Watkinson & Wilson (1985a), Grandi (1931a, 1933a), Haase (1942a), Hartig (1939a), Hellers (2017a), Hering (1957a), Huber (1969a), Huemer (1986b, 2012a), Huemer & Erlebach (2003a), Jaworski (2009a), Kasy (1987a), Klimesch (1950c), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Kvičala (1938a), Z & A Laštůvka (2009b), Maček (1999a), Matošević, Pernek, Dubravac & Barić (2009a), Nowakowski (1954a), Patočka (2001b), Patočka & Turčáni (2005a), Pinzari, Pinzari & Zilli (2013a), De Prins (1998a, 2007a), De Prins & Steeman (2011a), Robbins (1991a), Schütze (1931a), Sefrová (2005a), Skala (1941a), Skala & Zavřel (1945a), Sønderup (1949a), Szőcs (1977a), Tomov & Krusteva (2007a), Zoerner (1969a).

Last modified 18.i.2020