Delia coarctata (Fallén,1825)
wheat bulb fly
on grasses
cephalic skeleton (from Dušek)
puparium
parasite
Oviposition in the soil. The larvae bore in the culm of grasses; one larva can destroy several culms. Pupation and hibernation in the soil.
hostplants
Poaceae, oligofaag
Dactylis; Elymus; Hordeum; Lolium; Ochlopoa annua; Phleum; Secale cereale; Triticum aestivum.
distribution within Europe
egg, larva, puparium
all stages are described and illustrated by Dušek.
synonyms
Phorbia coarctata.
references
Buhr (1964b, 1965a), Dušek (1969a).