rufescens von Roser, 1840
von Roser, 1840. CorrespBl. württ. landw. Ver. Stuttg. (N.S.) 17(1): 63
Phytomyza analis Zetterstedt, 1848. Dipt. Scand.
7: 2842. [Synonymised by Spencer, 1976: 488]
Phytomyza hieracii Hendel, 1922. Wien. ent. Ztg.
39: 67. [Synonymised by Spencer, 1976: 488]
Phytomyza analis Zetterstedt, 1848; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 71, 113
Phytomyza rufescens von Roser, 1840; Spencer, 1976. Fauna ent. Scand. 5(1): 488-89, fig. 858
Phytomyza analis Zetterstedt, 1848; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 259, 268.
mainly in basal leaves, running along mid-rib, with short lateral
offshoots into leaf blade (Spencer, 1972b: 71). Pupation takes place within the petiole or mid-rib
(Spencer, 1976: 489).
corridor in the leaf base, radiating from the base of the midrib.
Frass in long strings along the sides of the mine. Primary feeding
lines quite conspicuous. Pupation within the mine, in the leaf base
or even deeper in the plant (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 larvae lie on their sides within the mine and use their pick-like mouthparts to feed on plant tissue.
Described by de Meijere (1926a, as hieracii) (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).
Posterior spiracles each with 20 or more bulbs (Spencer,
Hosts in Great Britain & Ireland:
of year - mines:
From the autumn till May, then again in July-August (Hering,
of year - adults: Currently unknown.
in Great Britain & Ireland: Uncommon. Yorkshire (Malham Tarn),
Argyll (Inverary) (Spencer, 1972b: 71) and Warwickshire (Robbins,
NBN Grid Map:
Distribution elsewhere: Widespread in continental Europe including Austria, Germany,
Finland, Norway, Sweden (Spencer,
1976: 489), The Netherlands (Bladmineerders van Europa), Germany (Spencer,
1976: 578), Czech Republic, European Turkey, Lithuania and Poland
(Martinez in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.