Eriocrania sangii (Wood, 1891)
large birch purple
Betula pendula, Belgium, prov. Antwerp, Balen, Scheps, 25.iv.2014 © Carina Van Steenwinkel
Betula spec, Belgium, prov. Antwerp, Balen, Griesbroek, 26.iv.215 © Carina Van Steenwinkel: the oviposition in then still very young leaf often results in a large gap in the lamina
Betula pendula, Belgium, prov. Limbourg, Dilsen-Stokkem, Negenoord-Kerkeweerd, 23.iv.2017 © Carina Van Steenwinkel: sometimes two larvae in a mine
Betula, Haren, Hortus de Wolf, 8.v.2010 © Kees Boele: mine with mature larva
Betula, Soest © Hetty Soetekouw: the lead coloured larva
Large, white, primary, full depth blotch, following upon a very short gallery. The mine begins close to the leaf margin, expanding deeper into the leaf. Frass in striking, long threads. Pupation in the soil. Vacated mines shrivel and wither away; later in summer not even a trace remains.
Only the larva enables a certain identification.
Betula pendula, pubescens.
Mines in late-March till May (Heath, 1983a).
BE not recorded (Fauna Europaea, 2009).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).
LUX not recorded (Fauna Europaea, 2009).
distribution within Europe
From Fennoscandia and northern Russia tot the Pyrenees and Alps, and from Ireland to Romania (Fauna Europaea, 2009).
Baran (2013a), Bengtsson (2008a), Heath (1983a), Hellers (2016a), Hering (1957a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Kurz (2016a), De Prins & Steeman (2011a), De Prins, Steeman & Sierens (2016a), Robbins (1991a), Sønderup (1949a), Tokár, Richter, Richter, ao (2010a).