pisivora Hering, 1957
pisivora Hering, 1957. Bestimm. Blattminen Europa 3:
Liriomyza pisivora Hering, 1957a; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 56 (fig. 194),
Liriomyza pisivora Hering, 1957a; Spencer,
1990. Host specialization in the World Agromyzidae (Diptera)
: 112, 130 (fig. 478), 131.
Leaf-mine: A long linear mine, normally starting on lower surface, frass in
black strips alternately at sides of mine (Spencer, 1972b: 58).
whitish corridor, almost always lower-surface at first, then becoming
largely or totally upper-surface. Because lower- and upper-surface
tracts often cross the leaf looks distinctly mottled whe held against
the light. The final part of the corridor is generally upper-surface.
The corridor often follows a thick vein for a considerable distance.
Frass in alternating thread fragments. Pupation outside the mine
(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.
Posterior spiracles each with 7 bulbs (Spencer, 1972b: 58). The larva is 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).
Hosts in Great Britain & Ireland:
of year - mines: July-August.
of year - adults: Currently unknown.
in Great Britain & Ireland: Kent (Hayes), Surrey (Chipstead),
Hertfordshire (Potter's Bar) (Spencer, 1972b: 58) and Warwickshire (Robbins,
NBN Grid Map:
Distribution elsewhere: Widespread in continental Europe including The Netherlands, Belgium,
Luxembourg (Bladmineerders van Europa), Corsica, Czech Republic, French mainland, Germany,
Lithuania and Poland (Martinez in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: