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. The larvae lie on their sides within the mine and use their pick-like mouthparts to feed on plant tissue.
Puparium: 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).
Hosts in Great Britain & Ireland: Currently unknown.
||Michelsen in litt. to Mike Ackland
of year - mines: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Northern Britain including Cumberland (VC70),
County Durham (VC66), Mid Perth and Westmorland (NBN
NBN Grid Map:
elsewhere: Austria, Norwegian mainland and Sweden (Michelsen in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: