irregularly linear, even forming secondary blotch. Pupation in mine
(Spencer, 1972b: 93 (fig.
shallow, irregularly branched corridor, sometimes a narrow blotch.
The mine is upper-surface, sometimes also interparenchymatous. The
colour is pale green, larer more rust-coloured. Frass in small,
widely spaced grains. Papation takes place within the mine. Hibernation
in the mine, among Fallén leaves (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 described by de Meijere (1926)
and Viggiani (1962).
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).
Malus domestica is treated
as Malus pumila (Apple) by
Hosts in Great Britain & Ireland:
of year - mines: September.
of year - adults: Currently unknown.
in Great Britain & Ireland: Local. Kent (Darenth) (Spencer, 1972b: 94).
Distribution elsewhere: Widespread in continental Europe including The Netherlands (Bladmineerders van Europa), Czech Republic, French mainland, Germany, Italian
mainland, Lithuania and Poland (Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: