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.
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).
Irwin and Chandler in Chandler
(1978) did not indicate whether their host records are British or
Foreign and are therefore tentatively included under 'Hosts in Britain and/or elsewhere' as are the records by Pitkin & Plant,
which were previously assumed to be British. The record of this species on Lemna is dicounted.
in Britain and/or elsewhere:
of year - mines: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Recorded in Britain (Irwin and
Chandler in Chandler, 1978);
Cambridgeshire (VC29), East Kent (VC15), Glamorganshire (VC41), Huntingdonshire (VC31), Monmouthshire (VC35),
South Hampshire and West Gloucestershire (NBN
NBN Grid Map:
Distribution elsewhere: Widespread in continental Europe including Austria, Belgium,
Czech Republic, Germany, Hungary, Poland, Sweden and The Netherlands
(Zatwarnicki, 2004 in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.