Stem-borer:
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.
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: June.
Distribution
in Great Britain and Ireland: Widespread in Britain including
Kent (Folkestone and Hythe), Middlesex (Scratch Wood), Dorset (Lyme
Regis), Derby (Miller's Dale) and Inverness (Inverness) (Spencer, 1972b: 46) and Cambridgeshire, Glamorgan and North Somerset (NBN
Atlas). Distribution
elsewhere: Widespread in continental Europe, including Denmark,
Sweden, Austria, Hungary, Romania, Netherlands, N. Italy (Spencer,
1976: 162), Germany (Spencer,
1976: 550), Czech Republic, Estonia, French mainland, Hungary,
Lithuania, Romania, Slovakia, Spanish mainland, Switzerland and
Yugoslavia (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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