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).
Stubbs in Chandler (1978)
did not indicate whether his host records were British or Foreign
and are therefore tentatively included under 'Hosts in Britain'
and 'Hosts elsewhere'.
Hosts in Great Britain & Ireland:
of year - larvae: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread in Britain including Warwickshire
(Sutton Coldfield) (Robbins,
1991: 70); Anglesey (VC52), Bedfordshire (VC30), Breconshire (VC42), Buckinghamshire (VC24),
Caernarvonshire (VC49), Cambridgeshire (VC29), Cardiganshire (VC46), Carmarthenshire (VC44),
Cumberland (VC70), Denbighshire (VC50), Derbyshire (VC57), County Durham (VC66), East Gloucestershire (VC33),
East Norfolk (VC27), East Suffolk (VC25), East Sussex (VC14), Glamorganshire (VC41), Herefordshire (VC36),
Huntingdonshire (VC31), Merionethshire (VC48), Mid-west Yorkshire (VC64), Middlesex (VC21),
Monmouthshire (VC35), North Devon (VC4), North Ebudes (VC104), North Hampshire (VC12), Pembrokeshire (VC45),
Radnorshire (VC43), Shropshire (VC40), South Lancashire (VC59), South Wiltshire (VC8), Staffordshire (VC39),
Surrey (VC17), West Kent (VC16), West Lancashire (VC60), West Norfolk (VC28), West Suffolk (VC26), Westmorland (VC69) and Worcestershire (VC37) (NBN
recorded in the Republic of Ireland (de Jong in Fauna Europaea).
elsewhere: Widespread in Europe, including Andorra, Belgium,
Czech Republic, Denmark, Estonia, Finland, French mainland, Germany,
Hungary, Norwegian mainland, Poland, Russia - North, Slovakia, Spanish
mainland, Sweden, Switzerland and The Netherlands (de Jong in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: