mine. Broad corridor, widening into a large transparant blotch with
1 or several, proportionally very large larvae that quickly completely
mine out a leaf, then move to another leaf. At the start of the
first mine at the leaf underside 1 or more oval egg shells. Pupation
outside the mine (Bladmineerders van Europa).
Forms large blotches on leaves (British
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 illustrated in 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).
Ackland in Chandler (1978)
did not indicate whether his host records were British or Foreign
and are therefore tentatively included under 'Hosts in Britain'
and 'Hosts elsewhere'.
Hosts in Great Britain & Ireland:
of year - mines: June-September.
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Warwickshire
(Coventry, Brownhill, Sutton Coldfield and Tile Hill) (Robbins,
1991: 69), Hampshire (Fleet) (British
leafminers); Berkshire (VC22), North Hampshire (VC12), Oxfordshire (VC23), South Hampshire (VC11), South Lancashire (VC59), Surrey (VC17), West Gloucestershire (VC34) and West
NBN Grid Map:
elsewhere: Widespread in continental Europe including The Netherlands
(Bladmineerders van Europa), Belgium (Gosseries
and Ackland, 1991), Czech Republic, Denmark, Finland, French
mainland, Germany, Hungary, Norwegian mainland, Poland, Russia -
Central, Slovakia and Sweden (Michelsen in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: