Plant Parasites of Europe

leafminers, galls and fungi

Profenusa thomsoni

Profenusa thomsoni (Konow, 1886)

Profenusa thomsoni mine

Betula pubescens, Overveen


Blotch, starting in the centre of the leaf. An ill-defined accumulation of frass in its first part. The blotch develops with little consideration of the major veins. Several mines may occur in a leaf, and coalesce into one large blister.


Betulaceae monophagous

Betula alleghaniensis, papyrifera, pendula, pubescens.


Larvae in August – September (Hering, 1957a).


BE not recorded (Fauna Europaea, 2008).

NE recorded surprisingly late, by Liston (1981a).

LUX not recorded (Fauna Europaea, 2008).

distribution within Europe

From Sweden and Finland to the Pyrenees, Italy and Bulgaria, and from Britain to Russia (Fauna Europaea, 2008).



Fenusella thomsoni; Profenusa alumna auct. nec (MacGillivray, 1923).


Preference for the older leaves on the lowest branches (Lindquist, 1959a).


Altenhofer, Hellrigl & Mörl (2001a), Beiger (1979a), Blank ao (1998a), Buhr (1941a), Digweed (2006a), Digweed ao (2009a), Haase (1942a), Hering (1937c, 1957a), Kirichenko, Augustin & Kenis (2018a), Kozlov, van Nieukerken, Zverev & Zvereva (2013a), Kruse, Smith & Schiff (2010a), Lindquist (1959a), Liston (1981a, 1995b), Looney, Smith, Collman, ao (2016a), Lorenz & Kraus (1957a), Martin (1960a), Pieronek (1962a), Pieronek & Soltyk (1993a), Robbins (1991a), Savina & Chevin (2012a), Scobiola-Palade (1974a), Shaw (1981a), Skala & Zavřel (1945a), Smith (1966a, 1971a), Sønderup (1949a), Taeger, Blank & Liston (2006a), Viramo (1969a), Wahlgren (1951a), Watson (1959a), Zombori (1978a).

Last modified 18.xi.2020