Agromyza
verbasci Bouché, 1847. Stettin. ent. Ztg. 8(5):
143
Agromyza verbasci Bouché, 1847; Hendel, 1931. Fliegen
palaearkt. Reg. 6(2): 75.
Amauromyza verbasci (Bouché, 1847); Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 46
Amauromyza (Trilobomyza) verbasci (Bouché, 1847);
Spencer, 1976. Fauna ent. Scand. 5(1): 166-7, figs
304-5
Amauromyza verbasci (Bouché, 1847); Spencer, 1990.
Host specialization in the world Agromyzidae (Diptera)
: 204, 214, 218, 221, 222, 223 (fig. 829), 224, 229, 231, 233,
385.
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Leaf-miner: A
linear-blotch mine, often with several mines occurring in the same
leaf (Spencer, 1976: 167,
fig. 305).
A
short, mostly upper-surface, rarely partly lower-surface corridor
leads to a large, upper-surface, primary blotch. The mine initially
is pale, turns brown later. Frass in sizeable dispersed grains.
Pupation outside the mine; the larva leaves the mine through a semicircular
exit slit in the upper epidermis (Bladmineerders van Europa).
Upper surface variable mine, from a short gallery leading to a large, roundish blotch to a long gallery leading to an elongated blotch (British
leafminers).
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.
The larva is described by de Meijere (1925),
Dempewolf (2001: 104) and illustrated
in Bladmineerders van Europa.
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).
Orange-yellow; posterior spiracles each with 3 bulbs (Spencer,
1976: 167).
Hosts in Great Britain and Ireland:
Hosts elsewhere:
Time
of year - mines: August.
Time
of year - adults: May-August.
Distribution
in Great Britain and Ireland: Recorded in Kent (Dartford),
Surrey (Kew), Isle of Wight (Spencer, 1972b: 45) and Warwickshire (Coombe and Kingsbury Wood) (Robbins,
1991: 101, as lamii); Glamorgan and South Lancashire (NBN
Atlas). Distribution elsewhere: Widespread in continental Europe, including Denmark, Finland,
Norway, Sweden, the Mediterranean area (Spencer,
1976: 158), The Netherlands (Bladmineerders van Europa), Corsica, Estonia, French mainland, Germany, Hungary,
Italian mainland, Poland, Romania, Sardinia, Sicily, Spanish mainland
and Yugoslavia (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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