Callisto coffeella (Zetterstedt, 1839)
The larva first makes short epidermal gallery, followed by a distinctly folded lower-surface tentiform mine. After some time the mine is vacated and the larva lives free then in a leaf margin that has been folded downwards and is secured with silk. In small leaves the two halves are simply spun together in a pod. Two of these leaf folds are made and eaten out.
The folds with the free living larva strongly ressembly the work of a sawfly larva on the same plant; however, then no silk is used to anchor the leaf margin (Bland, 1993a).
Salix arbuscula, glabra, myrsinifolia, phylicifolia, repens, silesiaca, waldsteiniana.
Also mentioned from Salix alba and caprea by Maček (1999a); because these cannot be considered arcto-alpine species, confirmation is required.
Larvae in July – August (Hering, 1957a).
distribution within Europe
From Fennoscandia and North Russia to the Pyrenees, Italy, and Romania, and from Scotland to the Ukraine; boreomontane species (Fauna Europaea, 2010).
See Bland (1993a).
See Patočka & Turčáni (2005a).
Callisto interruptella (Zetterstedt, 1839); C. blandella Müller-Rutz, 1920.
The name should not be confused with Leucoptera coffeella (Guérin-Ménéville, 1842). That is a pest in coffee crops (“CLM”, coffee leafminer) about which there is a voluminous literature.
Baldizzone (2008a), Bengtsson & Johansson (2011a), Bland (1993a), Buszko (1992b), Buszko & Baraniak (1987a), Deutsch (2017a), Emmet, Watkinson & Wilson (1985a), Hering (1957a), Kirichenko, Huemer, Deutsch ao (2015a), Klimesch (1950c), Kozlov & Kullberg (2006a), Maček (1999a), Palmer ao (1984a), Patočka & Turčáni (2005a), Szőcs (1977a).