Ectoedemia subbimaculella (Haworth, 1828)
spotted black pigmy
Quercus robur, Beegderheide
Betula pendula, Rotterdam, polder Schieveen: a case of xenophagy © Ben van As
Oviposition on the upper side of the leaf, next to a vein. The mine begins as a narrow corridor, filled with frass, running along a vein: usually the midrib, or along a lateral vein and then running in the direction of the midrib. The corridor abruptly widens into a blotch, usually in the axil of the midrib and a side vein. The larva makes a slit in the lower epidermis of the blotch, by which part of the frass is ejected. Pupation external.
In Hungary the species also occurs on Q. cerris; the larvae on this host are about a month earlier than those on other oaks in the same area (van Nieukerken ao, 2010a).
The synonymous Stigmella bistrimaculella is associated in the older literature, but even by Hering (1957a), with Betula. According to van Nieukerken & Johansson (1987a) this concerns rare cases of xenophagy.
Larvae from late-Septrember to well in November, usually in green islands in yellowing, often already fallen, leaves.
BE recorded (Phegea, 2009).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).
LUX recorded (Fauna Europaea, 2009).
distribution within Europe
Probably all Europe (Fauna Europaea, 2009).
Dechtiria, Nepticula, Stigmella subbimaculella; Ectoedemia nigrociliella (Stephens, 1834); Nepticula, Stigmella bistrimaculella von Heyden, 1861.
Bengtsson (2008a), Borkowski (1969a), Buhr (1936a, 1964a), Buszko & Baraniak (1989a), J Černý (2001a), Diškus & Stonis (2012a), Emmet (1971a, 1983a), van Frankenhuyzen & Houtman (1972a), Gustafsson (1985a), Gustafsson & van Nieukerken (1990a), Haase (1942a), Hering (1932g, 1934a, 1957a), Johansson ao (1990a), Kasy (1987a), Klimesch (1950c), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), A & Z Laštuvka (1997a, 2014a), Z & A Laštuvka (1998a), Lhomme (1934d), Michalska (1976a), Michna (1975a), Navickaitė, Diškus & Stonis (2014), van Nieukerken (1985a, 1986a, 2006a), van Nieukerken & Johansson (1987a), van Nieukerken, A & Z Laštuvka (2004a, 2006a, 2010a), van Nieukerken, Zolotuhin & Mistchenko (2004a), Palmer (2011a), De Prins (1998a), Robbins (1991a), Schütze (1931a), Sefrová (2005a), Skala (1939a, 1951a), Skala & Zavřel (1945a), Sønderup (1949a), Steuer (1995a), Szőcs (1977a, 1081a).