Leaf-mine:
Mine
irregularly linear, even forming secondary blotch. Pupation in mine
(Spencer, 1972b: 93 (fig.
315).
Very
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).
Comments:
Malus domestica is treated
as Malus pumila (Apple) by
Stace (2010).
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - mines: September.
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and 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 (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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