forming a short linear mine which develops into a large blotch (Spencer,
1976: 385 (fig. 671).
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.
Mandibles wth two teeth, only weakly alternating; no frontal appendage. Anterior spiracles with 10-13 bulbs, posterior spiacles with 15-20 bulbs, both in an irregular arc (de Meijere, 1928a, 1937a) (Bladmineerders van Europa).
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).
Black; posterior spiracles each with an ellipse of 20 bulbs (Spencer,
Hosts in Great Britain & Ireland: Currently unknown.
of year- larvae: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Added to the British checklist
by Henshaw in Chandler, 1998.
NBN Grid Map:
Distribution elsewhere: Widespread in continental Europe including Sweden (Spencer,
1990: 308), Austria, Czech Republic, Germany, Poland and Switzerland
(Martinez in Fauna Europaea).
recorded in Canada (Spencer,
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.