Larva and puparium in the leaf sheath; otherwise undescribed (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).
Hosts in Great Britain & Ireland: Currently unknown, but certainly Poaceae [as Gramineae] (Spencer, 1972b: 106).
of year - mines:
de Bruyn and von Tschirnhaus, 1995).
of year - adults: July.
in Great Britain & Ireland: Widespread in Britain including
Denbighshire (Cefn-y-bedd) (Spencer, 1972b); Cambridgeshire (VC29), East Kent (VC15), Glamorganshire (VC41), Isle of Wight (VC10),
Monmouthshire and Stafford (NBN
recorded in the Republic of Ireland: Co. Clare (Spencer, 1972b: 106).
elsewhere: Widespread in much of Europe including Denmark, Finland,
Sweden (Spencer, 1976: 181),
The Netherlands (Bladmineerders van Europa), Belgium (Scheirs,
de Bruyn and von Tschirnhaus, 1995), Germany (Spencer,
1976: 550), Austria, Czech Republic, Estonia, French mainland,
Lithuania, Poland and Slovakia (Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.