Elachista gleichenella (Fabricius, 1781)

twin-barred dwarf

Elachista gleichenella mine

Carex flacca, Belgium, prov. Namur, Lives-sur-Meuse; © Jean-Yves Baugnée

mine

Egg generally at the underside of the leaf tip. From September till the following spring a narrow meandering corridor is made. Then gradually the corridor widens to nearly the full width of the leaf. Generally the larvae make a new mine in early winter, obviously without the initial corridor. The mine in this stage is brown and situated close to (or within) the red coloured dying apical part of the leaf. Frass in large elongate dark spots. Pupation external.

hostplants

Cyperaceae, Juncaceae, Poaceae (?); narrowly polyphagous

Carex cuprina, curvula, digitata, divulsa, echinata, flacca, humilis, laevigata, montana, morrowii, muricata, ornithopoda, paniculata, pendula, pilosa, sempervirens, sylvatica, umbrosa; Deschampsia cespitosa; Luzula luzuloides, pilosa, plumosa, sylvatica.

The reference to Deschampsia cespitosa is strongly doubted by Traugott-Olsen & Nielsen (1977a) but still is repeated by later authors.

phenology

Larvae from September till late in May of the following year (Bland, 1996a).

BENELUX

BE recorded (Phegea, 2010).

NE not recorded waargenomen (Fauna Europaea, 2010).

LUX not recorded (Fauna Europaea, 2010).

distribution within Europe

Europe, except the Iberian Peninsula (Fauna Europaea, 2010).

larva

pupa

Described by Patočka (1999a), Patočka & Turčáni (2005a).

references

Baldizzone (2004a), Baran, Mazurkiewicz & Pałka (2007a), Bidzilya, Budashkin & Zhakov (2016a) Ukraine, Bland (1996a), Bland & Knill-Jones (1988a), Bland & Rotheray (2002a), Buhr (1935a,b), Buszko & Baraniak (1989b), Hering (1957a), Kaila, Nupponen, Junnilainen, Nupponen, Kaitila & Olschwang (2003a), Michalska (1976a), Parenti & Varalda (1994a), Patočka (1999a), Patočka & Turčáni (2005a), De Prins (1998a), Robbins (1991a), Schütze (1931a), Siloaho, Saarela & Sippola (2008a), Sønderup (1949a), Sruoga & Ivinskis (2005a, 2011a), Sterling (1986a), Steuer (1980a), Szőcs (1977a, 1978a, 1981a), Traugott-Olsen & Nielsen (1977a), Wörz (1957a).

10/02/2017

mod 13.ii.2018