simplicoides (Hendel, 1920)
simplicoides Hendel, 1920. Arch. Naturgesch. 84A(7)
Melanagromyza simplicoides Hendel, 1920; Hendel, 1931.
Fliegen palaearkt. Reg. 6(2): 178
Melanagromyza kirgizica Rohdendorf-Holmanova, 1959. Ent.
Obozr. 38: 695. [Synonymised by Spencer, 1966a: 44]
Hexomyza simplicoides (Hendel, 1920); Spencer, 1966. Beitr.
Ent. 16: 44
Hexomyza simplicoides (Hendel, 1920); Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 14 (figs 5-7), 15, 118-120
Hexomyza simplicoides (Hendel, 1920); Spencer, 1976. Fauna
ent. Scand. 5(1): 38-9, figs 15-6
Hexomyza simplicoides (Hendel, 1920); Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 80 (fig.
296), 81, 93.
oval gall in the cortex of a twig (see Redfern et al, 2002: 433,
fig. 816); several galls may coalesce round stem. 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).
Yellowish, but the front segments are bright reddish brown (see
also Redfern et al, 2002: 433, fig. 817); posterior spiracles each
with three minute bulbs on short stalk (Spencer, 1972b: 15).
The adults, including the halteres, are uniformly black. Hexomyza
simplicoides may be distinguished from the two other species
of the genus recorded in Britain, sarothamni and simplicicoides,
by the costa ending at or shortly beyond vein R4+5.
Hosts in Great Britain & Ireland:
of year - galls: April-May.
of year - adults: end of May or early June.
in Great Britain & Ireland: Widespread in Britain including
Surrey (Box Hill, Effingham and Oxshott) and Cambridge. (Kirtling)
(Spencer, 1972b: 15), North Ebudes (VC104), South Somerset and Surrey (NBN
Distribution elsewhere: Widespread in continental Europe and temperate Asia, with confirmed
records from Spain, Finland, Germany, Austria, Hungary, the Kirghiz
Republic of the [former] U.S.S.R. (Spencer,
1976: 39), French mainland, Italian mainland, Lithuania, Poland,
Switzerland and The Netherlands (Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: