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.
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.
of year - larvae: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Added to the British list by
NBN Grid Map:
elsewhere: Widespread in continental Europe including Austria,
Czech Republic, Estonia, Finland, French mainland, Germany, Hungary,
Latvia, Lithuania, Poland, Romania, Slovakia, Sweden, Switzerland,
The Netherlands, Ukraine, Yugoslavia (Martinez in Fauna Europaea)
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.