Convolvulus arvensis, Belgium, prov. Liège, Wanze, Statte (station) © Jean-Yves Baugnée; young larva, in the gallery-making stage
Calystegia sepium, Brummen: older, free-living larva
anterior section, dorsal and ventral
head and pronotum, eye patch
prolegs on abd. 3; abdomen end
The prolegs, on abd. 3-6, are quite unusual. On abd. 3 and 6 they are placed wide apart, but on abd. 4 and 5 they are close together, on a median base. See Grandi (1933a) for a detailed description of the larval morphology.