gyrans Fallén, 1823a. Agromyzides Sveciae :
Agromyza gyrans Fallén, 1823a; Hendel, 1931. Fliegen
palaearkt. Reg. 6(2): 69
Amauromyza gyrans (Fallén, 1823a); Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 45
Amauromyza (Trilobomyza) gyrans (Fallén,
1823a); Spencer, 1976. Fauna ent. Scand. 5(1):
164, figs 298-300.
Amauromyza gyrans (Fallén, 1823a); Spencer, 1990.
Host specialization in the world Agromyzidae (Diptera)
: 204, 230 (fig. 867), 231, 233.
shallow whitish linear-blotch mine (Spencer,
1976: 164-5, fig. 300).
blotch, preceded by a very short corridor. Often several larvae
in a mine. Frass in isolated grains. Pupation outside the mine;
exit slit in upper 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 de Meijere (1937)
and Sasakwa (1961) 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).
Yellowish-brown; posterior spiracles each with 3 bulbs (Spencer,
Hosts in Great Britain & Ireland:
of year - mines: October.
of year - adults: Currently unknown.
in Great Britain & Ireland: England (Spencer,
1976: 154) and Wales including Denbighshire (NBN
recorded in the Republic of Ireland, Co. Clare (the Burren) (Spencer, 1972b: 45).
NBN Grid Map:
elsewhere: Widespread in continental Europe from England to
Spain and Yugoslavia and including Denmark, Finland, Norway, Sweden
(Spencer, 1976: 154), The
Netherlands (Bladmineerders van Europa), Germany (Spencer,
1976: 550), Czech Republic, French mainland, Italian mainland,
Lithuania, Poland and Yugoslavia (Martinez in Fauna Europaea).
recorded in Japan (Spencer, 1990).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: