Elachista juliensis Frey, 1870
The mine begins as a narrow corridor following the midrib that, gradually widening, ascends towards the leaf tip, then turns and descends; sometimes the corridor is descending from its start on. The final mine is 8.5 – 10.5 cm long. Along the leaf margin strips of uneaten parenchyma remain. Most frass is deposited in the oldest, upper, part of the mine. Pupation external, often at the base of the mined leaf, deep in the tussock.
Cyperaceae, narrowly monophagous
Earlier authors (Szőcs, 1978a; Parenti & Varalda, 1994a) cite a larger number of species: C. digitata, ericetorum, humilis, pilosa, sempervirens. However, in their revision Kaila & Varalda (2003a) conclude that juliensis lives exclusively on C. humilis. Maček (199a) mentions C. pendula; this must be a mistake.
Larva from May till early June (Steuer, 1978a).
Not known from the Benelux countries (Fauna Europaea, 2010).
distribution within Europe
From Germany to Italy and from Switzerland to Slovakia and Hungary (Fauna Europaea, 2010).
Described by Steuer (1978a). The larva is wax-coloured, also most of the prothoracic and anal shield. Only the anterior half of the prothoracic shield is dark brown.
Described by Patočka (1999a), Patočka & Turčáni (2005a).
Biselachista juliensis; Elachista freyi Staudinger, 1870.
See Kaila & Varalda (2003a) for the systematics of the difficult E. juliensis species group.
Baldizzone (2004a), Buhl ao (1991a), Buszko (1990a), Hering (1957a), Huemer (2012a), Kaila & Varalda (2003a), Klimesch (1950c), Laštůvka, Laštůvka, Liška ao (1992a), Maček (1999a), Nel (2003a), Parenti & Pizzolato (2015a), Parenti & Varalda (1994a), Patočka (1999a), Patočka & Turčáni (2005a), Petry (1923a), Pröse (1981a, 1995a), Réal (1990a), Schütze (1931a), Steuer (1978a).