Bucculatrix cristatella (Zeller, 1839)
crested bent-wing

Klimesch (1942a).
mine
Initially an extremely fine corridor along the leaf margin; these mines mainly in the lower leaves. Frass in a narrow central line. The larva can leave its mine and restart elsewhere. Older larvae live free, and feed by slicing open the margin of a leaf segment near its tip and eating away as much tissue as it can reach (to about one third of its length). The result is a number of full depth blotch mines. When the larve has become too large even for this strategy, its starts to feed freely on the leaf. Pupation in a straw-coloured, spindle-shaped, ribbed cocoon
host plants
Asteraceae, oligophagous
Achillea aspleniifolia, collina, millefolium; Chrysanthemum; Cota tinctoria; Leucanthemopsis alpina.
phenology
Larvae in April – May and in July (Emmet, 1985a); hibernation as egg or young larva (Patočka, 1996a).
BENELUX
BE recorded (Phegea, 2009).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).
LUX not recorded (Fauna Europaea, 2009).
distribution within Europe
Entire Europe, with exception of the Iberian and the Balkan Peninsula (Fauna Europaea, 2009).
larva
The mining larva is amber yellow (intestine greenish as usual), head and prothoracic shield brown; the chaetotaxy is described by Klimesch (1942a); Schmid gives pictures.
pupa
Described by Klimesch (1942b), Patočka (1996a), and Patočka & Turčáni (2005a).
synonymsBucculatrix imitatella Herrich-Schäffer, 1855; B. jugicola Wocke, 1876.
references
Bengtsson & Johansson (2011a), Biesenbaum (2010a), Borkowski (2003a), Buhr (1935a), Burmann (1991a), Buszko (1992b), Corley, Cardoso, Nunes, ao (2022a), Emmet (1985a), Kasy (1965a), Klimesch (1937b, 1942b, 1956a, 1958c), Kozlov & Kullberg (2010a), Kuchlein & Donner (1993a), Kuchlein, Gielis, Huisman, ao (1988a), Kuchlein & de Vos (1999a), Kurz & Embacher (2012a), Leutsch (2011a), Mey(1999a), Mitterberger (1931a), van Nieukerken, Gielis, Huisman ao (1993a), Patočka (1996a), Patočka & Turčáni (2005a), Robbins (1991a), Schmid (2019a), Skala & Zavřel (1945a), Svensson (1971a), Szőcs (1968a, 1977a, 1981a), Walczak (2011a).