Seed
and stem feeder :
Feeding in both seed heads and stems (Spencer,
1976: 344).
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:
Hosts
elsewhere: Currently unknown.
Time
of year - larvae: Currently unknown.
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Widespread in Britain including
London (Hampstead), Edinburgh (Edinburgh, Braid Hills), Ross and
Cromarty (Skye) (Spencer, 1972b:
68); Carmarthenshire, Cumberland, South-west Yorkshire and Stafford (NBN
Atlas).
Also
recorded in the Republic of Ireland (Fauna Europaea). Distribution
elsewhere: Widespread in continental Europe including Denmark,
Norway, French mainland, Germany (Spencer,
1976: 344), Czech Republic, French mainland, Lithuania, Slovakia,
Spanish mainland and Sweden (Fauna Europaea).
Also
recorded in the Near East (Fauna Europaea). NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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