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).
Ctenosciara develops in decaying material and is very unlikely
to be a leaf-miner (Peter Chandler, pers. comm.)
Hosts in Great Britain & Ireland:
of year - mines: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread in Britain including Warwickshire
(Robbins, 1991: 27), Berkshire (VC22),
East Kent (VC15), East Sussex (VC14), Easterness (VC96), Elgin, Merionethshire (VC48), North Hampshire (VC12), North-east Yorkshire (VC62), Shropshire (VC40), Staffordshire (VC39), West Suffolk (VC26), West Sussex (VC13) and Worcestershire (VC37) (NBN
recorded in the Republic of Ireland (Heller, 2004 in Fauna Europaea).
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Distribution elsewhere: Widespread in continental Europe including Albania, Austria,
Bulgaria, Canary Is., Czech Republic, Denmark, Finland, French mainland,
Germany, Italian mainland, Kaliningrad Region, Norwegian mainland,
Poland, Sweden, Switzerland and The Netherlands (Heller, 2004 in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.