Scythropia crataegella (Linnaeus, 1767)
Crataegus monogyna, Nieuwendam
another leaf (together with Rhamphus oxyacanthae).
primary mine; at right, partly on top of the midrib, the egg
secondary mines, underside; frass grains are stuck in an invisible, thin, spinning
Prunus spinosa, Veenendaal © Ben van As; secondary mines
lighted from behind
The young larvae make very small (≤ 3 mm) corridor or blotch mines, usually several in a leaf. The primary mine generally lies adjacent to the midrib; as fas as I have seen the egg always is upper-surface. The secondary mines often are found in leaves without primary mine: obviously the larvae easily move to another leaf. The secondary mines are made from the underside of the leaf; while moving around silk is deposited under the leaf. Most frass is ejected from the mines, and part of the frass grains remain stuck in the spinning. Rather soon the larvae start living completely free in a common spinning under a leaf. The hibernate in a hibernaclum and continue living free in the spring.
Larvae from autumn till in June.
BE recorded (Phegea, 2010).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2010).
LUX recorded (Fauna Europaea, 2010).
distribution within Europe
From Fennoscandia to the Mediterranean, and from Britain to Romania (Fauna Europaea, 2010).
social; head black, with brown and white lines; mottles reddish brown to fuscus grey (Agassiz, 1996a).
Illustrated by Patočka (1997a).
Agassiz (1996a), Baldizzone (2004a), Bengtsson & Johansson (2011a), Buhr (1936a), Burmann (1951a), Emmet (1976a), Heckford (1986a), Hering (1957a), Kasy (1987a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Patočka (1997a), Patočka & Turčáni (2005a), Robbins (1991a), Schütze (1931a), Skala (1951b), Szőcs (1977a), Wegner (2010a), Wörz (1957a).