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Lifestyle: Unknown, possibly feeds as internal stem-borer (Spencer, 1972b: 92).

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: Adults have been caught on Ranunculus (Spencer, 1972b: 92).

Hosts in Great Britain and Ireland: Currently unknown.

Hosts elsewhere: Currently unknown.

Time of year - larvae: Currently unknown.

Time of year - adults: May.

Distribution in Great Britain and Ireland: Widesrpead in Britain including Kent (Wrotham), Berkshire (Wytham), Buckinghamshire (Bovingdon) and Haddington (Aberlady) (Spencer, 1972b: 92); Cambridgeshire, Cardiganshire, East Kent, Glamorgan, Huntingdonshire and Surrey (NBN Atlas) and the Channel Is. (Fauna Europaea).

Distribution elsewhere: Widespread in continental Europe including Denmark, Finland, Sweden, Spain, [former] Yugoslavia (Spencer, 1976: 332), Germany (Spencer, 1976: 566), Austria, Belgium, Croatia, Czech Republic, Estonia, French mainland, Hungary, Italian mainland, Lithuania, Poland, Slovakia, The Netherlands and Yugoslavia (Fauna Europaea).

NBN Atlas links to known host species:

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