Leaf-mine:
Details unknown.
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 larvae lie on their sides within the mine and use their pick-like mouthparts to feed on plant tissue.
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:
Woodsiaceae |
|
|
|
|
Cystopteris |
fragilis
|
Brittle
Bladder-fern |
 |
Michelsen in litt. to Mike Ackland |
Time
of year - mines: Currently unknown.
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Northern Britain including Cumberland,
Mid-Perth and Westmorland (NBN
Atlas). Distribution
elsewhere: Austria, Norwegian mainland and Sweden (Michelsen in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
Currently unknown.
|