adjuncta Hering, 1928
adjuncta Hering, 1928. Zool. Jb. Syst. 55: 567
Phytomyza adjuncta Hering, 1928; Hendel, 1934. Fliegen
palaearkt. Reg. 6(2): 332
Phytomyza adjuncta Hering, 1928; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 89 (figs 299-300), 92, 121
Phytomyza adjuncta Hering, 1928; Spencer, 1976. Fauna
ent. Scand. 5(1): 367-9, figs 640-1.
Phytomyza adjuncta Hering, 1928; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 160, 169,
170 (fig. 627).
linear mine rigidly following the margin of the leaf segment (Spencer,
long, narrow, upper-surface initial corridor, starting in the centre
of a leaflet, that suddenly widens. The wider later corridor closely
follows the leaf margin. Frass in irregularly dispersed granules.
Primary feeding lines apparent. 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 illustrated in Bladmineerders van Europa ; posterior spiracles with approx. 16 bulbs.
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, shining, smooth and oval; posterior spiracles scarcely raised
and each with an ellipse of some 16 bulbs (Spencer,
1976: 369). The puparium is illustrated in Bladmineerders van Europa.
Hosts in Great Britain & Ireland:
of year - mines: June, August, October.
of year - adults: Currently unknown.
in Great Britain & Ireland: Middlesex (Scratch Wood and
Mill Hill) (Spencer, 1972b:
92) and Warwickshire (Hartshill and Sowe Common) (Robbins,
NBN Grid Map:
Distribution elsewhere: Widespread in continental Europe including Denmark, Finland,
Italy, Norway, Sweden, Switzerland (Spencer,
1976: 369), The Netherlands, Belgium, Luxembourg (Bladmineerders van Europa), Germany (Spencer,
1976: 369), Czech Republic, Estonia, French mainland, Hungary,
Lithuania, Poland, Romania and Switzerland (Martinez in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: