myosotica Nowakowski, 1959
myosotica Nowakowski, 1959. Dt. ent. Z. (N.F.) 6:
Phytomyza myosotica Nowakowski, 1959; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 86 (fig. 293), 90, 109
Phytomyza myosotica Nowakowski, 1959; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 198, 199.
initially linear, later developing into a whitish blotch. Pupation
in mine on lower surface (Spencer, 1972b: 90).
small upper-surface secondary blotch in the leaf apex, generally
beginning with a short corridor that mostly is overrun by the later
blotch. No feeding lines recognisable. The final part of the mine
is a lower-surface corridor, mostly following a vein and containing
no frass. At its end an exit slit is made; mostly the larva pupariates
within the mine, just before the exit (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.
Anterior spiracles of the larva each with 15-18 bulbs, posterior
spiracles each with 15-19 bulbs (Nowakowsksi,
1959; Griffiths, 1975).
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 orange (Spencer, 1972b:
Hosts in Great Britain & Ireland:
of year - mines:
August (Bladmineerders van Europa); Robbins (1991)
mentions a summer and an autumn generation.
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread but local. Surrey
(Bookham), Oxford (Oxford) and Huntingdonshire (Woodwalton Fen)
(Spencer, 1972b: 90); Glamorgan
elsewhere: Widespread in continental Europe including Norway
(Mines in BMNH), Germany, Poland (Spencer,
1990: 198), Czech Republic and Lithuania (Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: