cunctans (Meigen, 1830)
cunctans Meigen, 1830. Syst. Beschr. 6: 178
Melanagromyza cunctans (Meigen, 1830); Hendel, 1931. Fliegen
palaearkt. Reg. 6(2): 163
Melanagromyza cunctans (Meigen, 1830); Spencer, 1966. Beitr.
Ent. 16: 17
Melanagromyza cunctans (Meigen, 1830); Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 16 (figs 18-19), 17, 19, 117
Melanagromyza cunctans (Meigen, 1830); Spencer, 1976. Fauna
ent. Scand. 5(1): 49-50, figs 33-38
Melanagromyza cunctans (Meigen, 1830); Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 112, 119,
125, 126 (figs 444-6).
slender cylindrical gall in the upper part of the stem (Spencer, 1972b: 18; Redfern et al, 2002: 363, fig. 459). Pupation internal.
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).
Posterior spiracles separated by slightly less than their own diameter;
each with a ring of 6-8 ill-defined bulbs around the low protuberance
replacing the normal horn (Spencer, 1972b: 16, fig. 19).
Hosts in Great Britain & Ireland:
of year - galls: Currently unknown.
of year - adults: August.
in Great Britain & Ireland: Uncommon. Surrey (Box Hill),
Buckinghamshire (Ivinghoe), Hereford (Tarrington) (Spencer, 1972b: 19); East Sussex (VC14), Glamorganshire (VC41), North Somerset (VC6), South Wiltshire
and West Gloucestershire (NBN
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elsewhere: Widespread in continental Europe including Sweden,
Germany and Austria but more common in Mediterranean areas, with
records from Corsica, Italian mainland, Spain and Yugoslavia (Spencer,
1976: 50), Belgium, Canary Is., Czech Republic, European Turkey,
French mainland, Hungary, Italian mainland, Lithuania, Poland, Slovakia
and Switzerland (Martinez in Fauna Europaea).
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British and Irish Parasitoids in Britain and elsewhere: