Feeds and pupariumtes in the petiole (Spencer,
a borer in the petiole, but now and then the larva may also make
corridors in the leaf blade. Pupation in the petiole (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.
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).
The puparium is described by de Meijere (1943).
Brownish-black; posterior spiracles greatly enlarged, on projections
extending laterally, each with a double ellipse of numerous minute
bulbs (Spencer, 1976: 499-500).
Hosts in Great Britain & Ireland: Currently unknown.
of year - larvae: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Added to British checklist by
Smith and Henshaw in Chandler,
1998. Recorded in East Ross (NBN
recorded from Lough Ballynafid, Co. Westmeath, Ireland (Chandler
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Distribution elsewhere: Widespread in continental Europe including Belgium (Scheirs,
de Bruyn and von Tschirnhaus, 1999), Denmark, Germany (Spencer,
1976: 499) and Estonia (Martinez in Fauna Europaea).
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British and Irish Parasitoids in Britain and elsewhere: