Macrosaccus robiniella (Clemens, 1859)
leaf blotch miner moth
Macrosaccus robiniella, Drachten, 9.ix.2018 © Gerrit Tuinstra
mine, upper side
same mine, underside
mine with two larvae
opened mine with two cocoons; a vacated cocoon protrudes halfway out of the mine
Robinia pseudoacacia, Germany, Baden-Württemberg, Baden-Weiler, 29.ix.2001
Robinia pseudoacacia, Pietersberg, 12.vii.2005; opened mine with two cocoons
Lower-surface, white, initially flat, later weakly contracted, very fragile, tentiform mine; upper side greenish white, centre like coarsely peppered. A remarkable characteristic is that, by fusion of young mines, most mines contain several larvae (usually 2, but up to 15!). The mine invariably is limited to one side of the leaflet. Pupa each in a snow white, flat, oval, cocoon that is suspended by numerous silken threads attached to the roof of the mine. Frass grains very fine, neither clumped nor incorporated in the cocoon, but loosely scattered throughout the mine.
Robinia hispida, neomexicana, pseudacacia.
Sefrová (2005a) found the species also Laburnum anagyroides, but this was in a botanical garden.
Mines from June till October (Csóka, 2003a).
distribution within Europe
From Denmark tot he Iberian Peninsula, Italy, and Romania, and from France to the Ukraine (Fauna Europaea, 2010).
BE known from Belgium since 2001 (De Prins & Groenen, 2001a).
NE first record in 1998 (Huisman ao, 2003a).
LUX recorded (Schneider & Walisch, 2009a).
Described by Davis & De Prins (2011a) and Sefrová (2000b).
North American species, that appeared in Europe around 1970 in northern Italy (Whitebread, 1990a). Numerous adult specimens were found hibernation in a nest box (Rietschel, 1997a). The number of generations varies between 3 and 4 (Nicolai, 2010a).
Bengtsson & Johansson (2011a), Bolchi Serini & Trematerra (1989a), Csóka (2001a, 2003a), Davis & De Prins (2011a), Deschka (2014a), Deutsch (2012a), Deutschmann (2008a), Flügel (2011a, 2016a), Gerstberger (2000a), Gregor & Patočka (2001a), Huemer (2012a), Huemer & Erlebach (2003a), Huemer ao (1992a), Huisman, Koster, Muus & van Nieukerken (2013a), Huisman, Koster, van Nieukerken & Ulenberg (2003a, 2004a), Ivinskis & Rimsaite (2008a), Jaworski (2009a, 2018b), Kirichenko, Augustin & Kenis (2018a), Kollár (2007a), Kollár & Hrubík (2009a), Kovács, Kovács & Szabóky (2006a), Kuchlein, Kuchlein-Nijsten & De Prins (2002a), ME & MA Kurz (2007a), Leutsch (2011a), Maček (1999a), Matošević, Pernek, Dubravac & Barić (2009a), Melika ao (2006a), Nel & Varenne (2014a), Nicolai (2005a, 2010a), Noreika (2008a), Olivella (2005a), Parenti & Varalda (2000a), Patočka Turčáni (2005a), Plóciennik, Pawlikiewicz & Jaworski (2011a), De Prins (2003b, 2007a), De Prins, De Prins & De Coninck (2003a), De Prins & Groenen (2001a), De Prins & Steeman (2011a), De Prins, Steeman & Sierens (2015a), Rietschel (1997a), Roweck & Savenkov (2007a), Schmid (2019a), Schneider & Walisch (2009a), Sefrová (2002b, 2003a, 2005a), Stammer (2016a), Stolnicu (2007a), Tomov & Krusteva (2007a), Ureche (2006a, 2010a), Whitebread (1990a), Wipking (1991a).