Leaf-miner: Lower-surface
corridor; larva solitary. Pupation mostly outside the mine (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.
The larva is described by Dempewolf (2001:
122).
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 and Ireland:
Hosts
elsewhere:
Time
of year - larvae:
June-August, rarely September (Bladmineerders van Europa).
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Cambridgeshire (NBN
Atlas). Distribution
elsewhere: Widespread in continental Europe including Germany
(Bladmineerders van Europa), Austria, Czech Republic, Estonia, Finland, French
mainland, Hungary, Lithuania, Poland, Slovakia and Sweden (Fauna Europaea).
Also
recorded in Canada (Spencer,
1969a: 128).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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