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Leaf-miner: Corridor, widening into a full depth blotch. At the start of the corridor a lower-surface elliptic egg shell. The larva is capable of leaving its mine and making a new blotch mine elsewhere. Frass in the corridor in a central line, in the blotch as scattered grains. 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.

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).

Comments: Ackland in Chandler (1978) did not indicate whether his host record was British or Foreign and is therefore included under 'Hosts in Britain' and 'Hosts elsewhere'.

Hosts in Great Britain and Ireland:

Oxalidaceae
? Oxalis	acetosella	Wood-sorrel		Ackland in Chandler, 1978: 228
Oxalis	acetosella	Wood-sorrel		Andy Banthorpe

Hosts elsewhere:

Oxalidaceae
Oxalis				Hering, 1957
? Oxalis	acetosella	Wood-sorrel		Ackland in Chandler, 1978: 228
Oxalis	acetosella	Wood-sorrel		Bladmineerders van Europa

Time of year - mines: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Britain including Berkshire, Dunbartonshire, Easterness, Herefordshire, Main Argyll, North Hampshire, Oxfordshire, South Hampshire, Surrey and West Ross (NBN Atlas). The species has recently (July 2013) been collected at Llyn Gerionydd, Snowdonia on Oxalis acetosella by Andy Banthrope and in Cumbria on Oxalis acetosella by Gary Hedges.

Distribution elsewhere: Widespread in continental Europe including Austria, Czech Republic, Denmark, Finland, Germany, Italian mainland, Norwegian mainland, Poland, Russia - Central and Northwest, Slovakia and Sweden (Michelsen in Fauna Europaea).

NBN Atlas links to known host species:

British and Irish Parasitoids in Britain and elsewhere: