virgaureae Hering, 1826
virgaureae Hering, 1926c. Z. Morph. ökol. Tiere
Phytomyza virgaureae Hering, 1926c; Hendel, 1935. Fliegen
palaearkt. Reg. 6(2): 495
Phytomyza umensis Rydén, 1949. Opusc. ent.
14: 87. [Synonymised by Spencer, 1976: 534]
Phytomyza virgaureae Hering, 1926c; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 80, 115
Phytomyza virgaureae Hering, 1926c; Spencer, 1976. Fauna ent. Scand. 5(1): 524-5, fig. 918
Phytomyza virgaureae Hering, 1926c; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 274, 283,
284 (fig. 1087).
whitish linear mine, with frass predominantly in separate grains,
rather than connected strips (Spencer,
narrow, gradually and weakly widening corridor of about 10-12 cm.
The mine is upper-surface, pale green. Feeding lines not conspicuous.
Frass in separate grains or short pearl chains. Pupation outside
the mine, exit slit in lower epidermis (Bladmineerders van Europa).
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 Dempewolf (2001:
198). See also de Meijere (1937a), Beiger (1960) and Griffiths (1976c). Anterior spiraculum with 11-12 papillae, posterior with c. 14 papillae in an irregular curve (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).
Black; posterior spiracles each with an ellipse of about 14 bulbs
(Spencer, 1976: 525).
Hosts in Great Britain & Ireland:
of year - mines: August.
of year - adults: Currently unknown.
in Great Britain & Ireland: Surrey (Holmbury St Mary) (Spencer, 1972b: 80).
recorded in the Republic of Ireland (Martinez in Fauna Europaea).
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Distribution elsewhere: Widespread in continental Europe including Denmark, Finland,
Norway, Sweden (Spencer, 1976:
524), Germany (Spencer, 1976:
582; Bladmineerders van Europa ; Dempewolf,
2001: 198), Austria, Corsica, Czech Republic, French mainland,
Italian mainland, Lithuania, Poland and Switzerland (Martinez in Fauna Europaea).
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British and Irish Parasitoids in Britain and elsewhere: