in the tip of a leaflet; this causes an intensive red colouring
of the distal part of the leaflet. From there a primary blotch develops,
that in the end occupies almost the entire leaflet. At first the
mine is upper-surface, but gradually deeper parts of the mine are
eaten away, leading to a very transparent mine. Frass fine-grained,
quickly deliquescent. Pupation outside the mine (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.
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).
The puparium is illustrated in Bladmineerders van Europa.
Hosts in Great Britain & Ireland:
and von Tschirnhaus, 2006
of year - mines:
Larvae observed in the second half of June (Bladmineerders van Europa).
of year - adults: Currently unknown.
in Great Britain & Ireland: Currently unknown.
NBN Grid Map:
elsewhere: Widespread in continental Europe including Germany,
Poland, Switzerland (Martinez in Fauna Europaea); recently found also in the Norway (Gibbs and von
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: