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Leaf-miner: An irregular linear-blotch mine (Spencer, 1972b: 54).

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.

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 and Ireland:

Polygalaceae
Polygala	vulgaris	Common Milkwort		Spencer, 1972b: 118

Hosts elsewhere:

Polygalaceae
Polygala	chamaebuxus	Shrubby Milkwort		Bladmineerders van Europa
Polygala	vulgaris	Common Milkwort		Spencer, 1990: 150

Time of year - mines: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Surrey (Box Hill) (Spencer, 1972b: 54).

Also recorded in the Republic of Ireland: Co. Clare (Spencer, 1972b: 54).

Distribution elsewhere: Widespread in continental Europe (Spencer, 1990: 150) including Germany, Italian mainland, Poland and Switzerland (Fauna Europaea).

NBN Atlas links to known host species:

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