long external whitish stem mine, feeding downwards from a leaf stalk
or part of the upper stem. Pupation external (Spencer, 1972b: 41).
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).
Yellowish (Spencer, 1972b:
Only a single female has been reared (Spencer,
Hosts in Great Britain & Ireland:
elsewhere: Currently unknown.
of year - mines: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Huntingdonshire (Woodwalton
Fen) and Cambridge (Chippenham Fen) Spencer, 1972b: 41. (NBN
recorded in the Republic of Ireland: Co. Down (Spencer, 1972b: 41).
elsewhere: Widespread in continental Europe including Czech
Republic, Finland, Germany, Lithuania and Spanish mainland (Martinez
in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.