Phytomyza
tenella Meigen, 1830
[Diptera:
Agromyzidae]
Phytomyza
tenella Meigen, 1830. Syst. Beschr. 6: 195
Phytomyza zonata Zetterstedt, 1848. Diptera Scandinaviae.
7: 2834
Phytomyza tenella Meigen, 1830; Hendel, 1935. Fliegen
palaearkt. Reg. 6(2): 497
Phytomyza pedicularis Hering, 1949b. Notul ent.
28: 182
Phytomyza tenella Meigen, 1830; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 84 (fig. 276), 85, 120
Phytomyza tenella Meigen, 1830; Spencer, 1976. Fauna
ent. Scand. 5(1): 512-14, figs 897-8.
Phytomyza tenella Meigen, 1830; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 222, 227,
228 (fig. 859).
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Seed-feeder:
Larvae feeding in seed-heads. Pupation external (Spencer,
1976: 512).
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).
Brownish; posterior spiracles enlarged, each with about 45 bulbs.
Hosts in Great Britain and Ireland:
Hosts elsewhere:
Time
of year - larvae: August.
Time
of year - adults: June the following year.
Distribution
in Great Britain and Ireland: Inverness (Loch Pityoulish),
Elgin (Culbin Sands) (Spencer, 1972b: 85), Inner Hebrides (Isle of Coll) (Bland,
1992); and North-east Yorkshire (NBN
Atlas).
Also
recorded in the Republic of Ireland: Co. Clare (Burren) (Spencer, 1972b: 85). Distribution elsewhere: Widespread in continental Europe including Denmark, Finland, Norway,
Sweden (Spencer, 1976: 512),
Germany (Spencer, 1976: 578),
Azores, Belgium, Canary Is., Estonia, Faroe Is., French mainland,
Hungary, Italian mainland, Lithuania, Madeira, Poland, Spanish mainland
and Switzerland (Fauna Europaea).
Also
recorded in Canada (Spencer,
1976: 512). NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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