Profenusa thomsoni (Konow, 1886)
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.
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), Lindquist (1959a), Liston (1981a, 1995b), 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).