schineri (Giraud, 1861)
schineri Giraud, 1861. Verh. zool.-bot. Ges. Wien 11:
Agromyza schineri Giraud, 1861; Hendel, 1931. Fliegen
palaearkt. Reg. 6(2): 162
Hexomyza schineri (Giraud, 1861); Spencer, 1966. Beitr.
Ent. 16: 42
Hexomyza schineri (Giraud, 1861); Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 14 (figs 11-13), 15, 118-120
Hexomyza schineri (Giraud, 1861); Spencer, 1976. Fauna
ent. Scand. 5(1): 37, figs 11-14
Hexomyza schineri (Giraud, 1861); Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 80 (fig.
295), 81, 93.
An oval twig gall up to 10 mm long (Redfern et al, 2002: 387, fig
588), sometimes several arranged spirally around twig each containing
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 grey to brown (Redfern et al, 2002: 387, fig 589); posterior
spiracles on short stalks, each with three minute bulbs (Spencer, 1972b: 14 (fig. 13), 15).
The adults, including the halteres, are uniformly black, as in other
British species of Hexomyza.
Hosts in Great Britain & Ireland:
of year - galls: May-June.
of year - adults: Currently unknown.
in Great Britain & Ireland: Hertfordshire (Hoddesdon) (Spencer,
1972: 15), Warwickshire (Coventry) (Robbins,
1983: 23) and Surrey (NBN
Distribution elsewhere: Widespread in continental Europe including Austria,
Germany, France, Spain (Spencer,
1976: 37), Belgium, Italian mainland and Poland (Martinez in Fauna Europaea).
recorded in Canada from New Brunswick to British Columbia (Spencer,
1969a: 81) and in the U.S.A. from Washington State to New Mexico
(Spencer, 1990: 81).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: