forms a broad mine beginning at the apex of the leaf (Spencer,
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 Griffiths (1963).
Mandibles with two teeth; anterior spiracles each with 11-14 bulbs;
posterior spiracles have 3 characteristically bending bulbs (Spencer,
1976: 135-6, figs 240A and 240C).
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).
Reddish (Spencer, 1976: 136).
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
elsewhere: Described from Yugoslavia and widespread in continental
Europe from Macedonia through Austria to north Germany including
Sweden (Spencer, 1976: 136),
Czech Republic, French mainland, Hungary, Poland, Slovakia and Yugoslavia
(Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: