Eriocrania salopiella (Stainton, 1854)
small birch purple
on Betla
Betula pendula, Hungary, Mosonmagyaróvár, 21.v.2018 © László Érsek
same, young, mine, lighted from behind
;arva dorsal …
… ventral …
… and lateral
Betula pubescens, Belgium, prov. Flemish Brabant, Averbode, Varkensbroek, 20.vi.2015 © Carina Van Steenwinkel
Betula pubescens, Belgium, prov. Limbourg, Lanaken, de Hoefaer, 27.vi.2015t © Carina Van Steenwinkel
section from the previous picture: this exuvium of a young larva shows in this early stage the larva bears black spots.

Betula pendula, Groeningse Berg, 6.vi.2005

same mine, detail
mine
Corridor, generally beginning in the neighbourhood of the midrib, rather gradually widening into a very large blotch. Frass in long threads. Pupation in the ground.
host plants
Betulaceae, monophagous
Betula pendula, pubescens.
phenology
Mines in mid-May (Hering, 1957a), May – June (Heath, 1976a).
BENELUX
BE recorded (De Prins & Steeman, 2011a).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).
LUX not recorded (Fauna Europaea, 2009).
distribution within Europe
From Fennoscandia and northern Russia to the Pyrenees and Alps, and from Ireland to Czechia (Fauna Europaea, 2009).
larvareferences
Bengtsson (2008a), Heath (1983a), Hering (1957a), Huisman & Koster (1994a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Maček (1999a), De Prins & Steeman (2011a), De Prins, Steeman & Sierens (2016a), Robbins (1991a).