Elachista pomerana Frey, 1870

fen dwarf


The mine begins near the leaf tip and descends towards the base. The mine occupies the entire width of the blade. Frass initially scattered, later in an irregular central line. Fully developed mine c. 8 cm long. Probably the larva is capable of leaving its mine and restarting in another leaf. Pupation external.


Poaceae, oligophagous

Avena fatua; Calamagrostis epigeios; Glyceria fluitans; Phalaroides arundinacea; Poa pratensis.


Larvae in April and June, possibly also in August (Bland, 1996a; Traugott-Olsen & Nielsen, 1977a).


BE not recorded (Fauna Europaea, 2009).

NE recorded (Huisman & Koster, 1998a; Microlepidoptera.nl, 2009).

LUX not recorded (Fauna Europaea, 2009).

distribution within Europe

From Fennoscandia to the Alps, and from Britain to Romania (Fauna Europaea, 2009).


Grey-green, with a faint white dorsal line; head and prothoracic plate light brown (Bland, 1996a; Traugott-Olsen & Schmidt-Nielsen, 1977a).


Bland (1996a), Buhr (1935b), Emmet & Langmaid (1993a), Hering (1957a), Huisman & Koster (1998a), Kozlov & Kullberg (2010a), Kuchlein & de Vos (1999a), Parenti & Varalda (1994a), Schütze (1931a), Sønderup (1949a), Sruoga & Ivinskis (2005a, 2011a), Surányi (1942a), Szőcs (1977a), Traugott-Olsen & Nielsen (1977a).


mod 13.ii.2018