Coleophora flavipennella (Duponchel, 1843)
tipped oak case-bearer
Quercus robur, Luxemburg, Kautenbach
Light brown, trivalved, tubular silken case of c. 7 mm with a mouth angle of . 45°. The youth case is a sheath case, less than 5 mm long.
Immediately after eclosion the larva makes a tiny blotch mine of about 1.7 x 0.7 mm, then excises a leaf case from it. Later this first case is enlarged with silk. No other miner on oak makes a similar mine, and its presence, in autumna and in combination with fleck mines, is a good indication for flavipennella.
The small leaf fragment remains part of the case. In the fully developed case its is to be found mid-dorsally, near the anal end. It is not at all easy to find, as it is withered and discoloured, and may be covered by detritus and newer silk. But if it is seen, it forms the single reliable character to distinguish the case from that of C. lutipennella, living on the same hostplants. (The larva provides another character.)
The youth case, < 5 mm, is a pistol case (van Roosmalen & Doorenweerd).
Fagaceae, oligophagous (?)
van Roosmalen & Doorenweerd found youth cases (but no full grown cases) on Fragaria vesca.
Full grown larvae in May (Emmet ea, 1996a).
BE recorded (Phegea, 2010).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2010).
LUX recorded (Fauna Europaea, 2010).
distribution within Europe
All Europe, but missing or scharce in the Mediterranean region (Fauna Europaea, 2010).
The sclerites on the mesothorax are wedge shaped; they are roundish in lutipennella (Emmet ao).
In all stages difficult to separate from C. lutipennella, and often confused with that species.
Baldizzone (1979a,b, 1984a, 2004a), Baldizzone & scalercio (2018a), Drăghia (1968b), Emmet, Langmaid, Bland ao (1996a), Goodey (1992a), Hering (1930b, 1934a, 1957a), Huemer (2012a), Huemer & Erlebach (2003a), Ivinskis & Savenkov (1991a), Kasy (1987a), Klimesch (1942a), Kollár & Hrubík (2009a), Kuchlein & Donner (1993), Kuchlein & de Vos (1999a), Leutsch (2011a), Michaelis (1983a), Nel (1992b), Patzak (1974a), Razowski (1990a), Robbins (1991a), van Roosmalen & Doorenweerd (2015a), Schütze (1931a), Sefrová (2005a), Sønderup (1949a), Suire (1961a), Szőcs (1977a), Toll (1952a, 1962a, 1981a), Wieser & Huemer (1999a).