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Phytomyza farfarella Hendel, 1935. Fliegen palaearkt. Reg. 6(2): 400
Phytomyza farfarella Hendel, 1935; Griffiths, 1967b. Stuttgarter Beitr. Ent. 177: 6
Phytomyza farfarella Hendel, 1935; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 87
Phytomyza farfarella Hendel, 1935; Spencer, 1976. Fauna ent. Scand. 5(1): 416, figs 725-6.
Chromatomyia farfarella (Hendel, 1935); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 259, 265.
Phytomyza farfarella Hendel, 1935; Winkler et al. 2009. Syst. ent. 34: 260-292.

Leaf-miner: A narrow, whitish linear mine. Pupation internal (Spencer, 1976: 416).

Upper-surface, less often lower-surface corridor. Frass in isolated grains. Puparium within the mine, usually at the lower surface (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 with 6-9 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).

White (Spencer, 1976: 416).

Comments: Leontodon autumnalis is treated as Scorzoneroides autumnalis (Autumn Hawkbit) by Stace (2010).

Hosts in Great Britain and Ireland:

Asteraceae
Leontodon	autumnalis	Autumn Hawkbit		Spencer, 1972b: 114
Taraxacum	officinale	Dandelion		Spencer, 1972b: 115

Hosts elsewhere:

Asteraceae
Leontodon				Spencer, 1990: 365
Leontodon				Bladmineerders van Europa
Leontodon	autumnalis	Autumn Hawkbit		Spencer, 1976: 416
Taraxacum				Spencer, 1976: 416
Taraxacum				Spencer, 1990: 365
Taraxacum	officinale	Dandelion		Bladmineerders van Europa

Time of year - mines: Probably bivoltine (Bladmineerders van Europa).

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Recorded in the Republic of Ireland (Co. Clare, Ballyvaughan, Lough Rask) (Spencer, 1972b: 87).

Distribution elsewhere: Widespread in continental Europe including [former] Yugoslavia, Germany, Denmark, Finland, Norway, Sweden, Faroe Is., Iceland (Spencer, 1976: 416), Lithuania, Poland, Sweden and Yugoslavia (Fauna Europaea).

NBN Atlas links to known host species:

British and Irish Parasitoids in Britain and elsewhere: Currently unknown.