demeijerei Hering, 1930
demeijerei Hering, 1930b. Z. angew. Ent. 17(2):
Liriomyza demeijerei Hering, 1930b; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 53, 57
Liriomyza demeijerei Hering, 1930b; Spencer,
1976. Fauna ent. Scand. 5(1): 242-3, figs 420-421.
Liriomyza demeijerei Hering, 1930b; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 300 (fig.
Leaf-mine: Generally associated with mid-rib or leaf margin and relatively
long (Spencer, 1976: 243).
corridor, generally descending from the tip of a leaf segment toewards
the centre along a vein or the leaf margin. Frass in strings. Pupation
outside the mine (Bladmineerders van Europa).
An upper surface gallery of moderate length, mostly alongside a vein. The corridor is long and loose, with stringy frass (British
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.
Posterior spiracles of the larva with 3 bulbs (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).
Yellow; posterior spiracles each with 3 bulbs (Spencer,
Hosts in Great Britain & Ireland:
of year - mines: Bivoltine: summer and autumn (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Uncommon. London (Hampstead)
(Spencer, 1972b: 57), Hampshire
leafminers) and Warwickshire (Coventry) (Robbins,
1991: 118); Cambridgeshire (NBN
Distribution elsewhere: Widespread in continental Europe (Spencer,
1990) including Denmark, Finland, Sweden (Spencer,
1976: 243), The Netherlands, Luxembourg (Bladmineerders van Europa), Belgium (de
Bruyn and von Tschirnhaus, 1991), Germany (Spencer,
1976: 243), Czech Republic, French mainland, Italian mainland,
Lithuania, Poland and Sicily (Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: