Metallus lanceolatus (Thomson, 1870)
on Geum
Geum urbanum, Russia, Moscow region, Orekhovo-Zuevsky district, Voinovo-gora village © Andrey Ponomarev
larva
imago
imago, dorsal
Geum urbanum, Belgium, prov. Namur, Hastière par-delà, RN Jean Septroux © Stéphane Claerebout
Geum urbanum, Nunspeet
Geum rivale, UK Lincoln: young larve, in a number that probably is too large to enable all to survive; © Martin Gray
mine
The mine begins with short, rather broad corridor, that often is overrun by the later, large, very transparent full depth blotch. The mine begins somewhere in the centre of the leaf. Frass in many loose grains. Larva pale, venter-upwards in the mine. Pupation external, exit slit in upper epidermis.
host plants
Rosaceae, monophagous
Geum coccineum, macrophyllum, rivale, x tirolense, urbanum.
phenology
Larvae found from June till November; probably two generations (Altenhofer & Pschorn-Walcher, 2003a).
BENELUX
BE recorded (Fauna Europaea, 2008).
NE recorded (Romeijn, 1993a); surprisingly, the species is not listed in van Ooststroom’s (1976a) checklist, although the species is not al all rare.
LUX recorded (Ellis: Kautenbach).
distribution within Europe
From Sweden and Finland to the Pyrenees, Alps and Bulgaria, and from Britain to Russia and the Ukraine (Fauna Europaea, 2008).
larva
synonyms
Entodecta lanceolata; Entodecta, Metallus gei (Brischke, 1883); M. bensoni DR Smith, 1971.
notes
The species is largely parthenogenetic (Romeijn, 1993a).
references
Altenhofer (2003a), Altenhofer & Pschorn-Walcher (2003a), Beiger (1955a, 1960a, 1965a, 1970a, 1979a), Blank ao (1998a), Buhr (1933a, 1941a, 1964a), Chevin, Ellis & Schneider (2011a), Csóka (2003a), Eiseman & Smith (2017a), Haarder & Liston (2018a), Haase (1942a), Hering (1957a), Huber (1969a), Liston (1995b, 2006a), Looney, Smith, Collman, ao (2016a), Lorenz & Kraus (1957a), Maček (1999a, 2012c), Michalska (1970a, 1972a, 1976a), Michna (1975a), Nowakowski (1954a), van Ooststroom (1976a), Pschorn-Walcher & Altenhofer (2000a, 2006a), Robbins (1991a), Romeijn (1993a), Skala & Zavřel (1945a), Sønderup (1949a), Starý (1930a), Stolnicu (2007a, 2008a), Surányi (1942a), Taeger, Blank & Liston (2006a), Taeger ao (1998a), Ureche (2010a), Viramo (1969a), Wahlgren (1944a, 1951a, 1963a), Zoerner (1969a), Zwakhals & Blommers (2022a).