Delia radicum (Linnaeus, 1758)
cabbage maggot, turnip fly
cephalic skeleton (from Dušek)
Several larvae bore in the root collar, causing the tissue to rot. One or more generations, depending on the climate, hibernation as puparium in the ground.
distribution within Europe
egg, larva, puparium
all stages are described and illustrated by Dušek and Savage ao.
Phorbia brassicae (Bouchée, 1833).
Important pest insect.
Dušek (1969a), Savage, Fortier, Fournier & Bellavance (2016a), Spooner & Bowdrey (2012a).