Phytomyza
evanescens Hendel, 1920
[Diptera:
Agromyzidae]
Phytomyza
evanescens Hendel, 1920. Arch. Naturgesch. 84A(7)
(1918): 167
Phytomyza evanescens Hendel, 1920; Hendel, 1935. Fliegen
palaearkt. Reg. 6(2): 397
Phytomyza parallela Hendel, 1935. Fliegen palaearkt.
Reg. 6(2): 449
Phytomyza evanescens Hendel, 1920; Griffiths, 1964. Ent.
Meddr. 32: 402
Phytomyza evanescens Hendel, 1920; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 91 (figs 307-8), 92, 119
Napomyza evanescens (Hendel, 1920); Spencer, 1976. Fauna
ent. Scand. 5(1): 333-4, figs 601-3.
Napomyza evanescens (Hendel, 1920); Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) :Handbk
ident. Br. Ins. 10(5g) 21, 38, 39 (fig. 128), 50, 402
Phytomyza evanescens Hendel, 1920; Zlobin, 1994. Dipterological
Research 5: PAGE.
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Stem-borer:
Larva feeding as an internal stem-borer (Spencer, 1972b: 92).
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).
Yellowish; posterior spiracles arising from a common base, each
with an ellipse of some 20 bulbs (Spencer,
1976: 334, 335 (fig. 603).
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: Currently unknown.
Time
of year - adults: May-July.
Distribution
in Great Britain and Ireland: Kent (Wrotham), Lincoln (Surfleet),
Warwickshire (Rugby) (Robbins, 1991), Banff (Falls of Tarnash) (Spencer, 1972b: 92), Cambridgeshire, South-west Yorkshire and Stafford (NBN
Atlas). Distribution
elsewhere: Widespread in continental Europe from Sicily to Faroe Is., including
Denmark, Sweden, Finland (Spencer,
1976: 334), Germany (Spencer,
1976: 566), Austria, Belarus, Czech Republic, Estonia, French
mainland, Iceland, Lithuania, Poland, Slovakia, Spanish mainland,
The Netherlands and Yugoslavia (Martinez, 2004 in Fauna Europaea).
Also
recorded in western Canada and the U.S.A. (California) (Spencer,
1976: 334). NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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