Leaf-mine:
Large, upper-surface blotch of unchanging depth, occu[ying a large
section of a leaf segment. Frass in scattered grains. Secundary
feeding lines not recognisable. 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.
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).
Hosts in Great Britain and Ireland: Currently unknown.
Hosts elsewhere:
Time
of year - larvae: Currently unknown.
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Added to British checklist by
Henshaw in Chandler, 1998.
England (Spencer, 1990: 173). Distribution elsewhere: Described from Alaska and since discovered
in the mountains of southern Germany (Spencer,
1990: 173; Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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