Lifestyle: Currently unknown.
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).
Spencer (1990) suggested
that the host was possibly Achillea
millefolium on which the original series was caught.
Hosts in Great Britain & Ireland: Currently unknown.
elsewhere: Currently unknown.
of year - mines: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: London (Hampstead), Middlesex
(Scratch Wood) and Buckinghamshire (Wendover) (Spencer, 1972b: 55). (NBN
Distribution elsewhere: Widespread in continental Europe including Czech Republic, Germany and Lithuania
(Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.