Similar to the mine of Pegomya
hyoscyami, but differs in the presence of an unusually large
puparium. Probably a better discrimination is the unusually large
clutch size, which is on averge is eleven (Bladmineerders van Europa).
Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall.
Puparia: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples).
Ackland in Chandler (1978)
did not indicate whether his host record was British or Foreign
and is therefore included under 'Hosts in Britain' and 'Hosts elsewhere
Hosts in Great Britain & Ireland:
of year - mines: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Warwickshire (Robbins,
1991: 98); Cambridgeshire (VC29), Herefordshire and Oxfordshire (NBN
NBN Grid Map:
elsewhere: Recorded from Spanish mainland. Doubtfully recorded
from Germany, Poland and Sweden (Michelsen in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.