corridor, leading to a large blotch. The blotch has lower- and upper-surface
parts, and is full depth where these overlap. Pupation external
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.
Watch a video of a scaptomyzid fly larva on Arabidopsis on YouTube by mash92587.
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).
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 & Ireland:
of year - mines: July.
of year - adults: Appears to have at least two generations a
year. Most abundant in May and October.
in Great Britain & Ireland: Widespread from Caithness in
the north to Kent in the south-east. Inner Hebrides (Isle of Coll)
(Bland, 1992); Anglesey (VC52), Cambridgeshire (VC29),
Cardiganshire (VC46), East Sussex (VC14), Glamorganshire (VC41), Monmouthshire (VC35), Pembrokeshire (VC45),
South Aberdeen and Surrey (NBN
NBN Grid Map:
elsewhere: Widespread in continental Europe (Bächli
and Roche Pite, 1984) including Austria, Bosnia and
Herzegovina, Croatia, Czech Republic, Denmark, Finland, French mainland,
Germany, Hungary, Lithuania, Norwegian mainland, Poland, Romania,
Russia - North and Northwest, Slovakia, Sweden and The Netherlands
(Bächli, 2004 in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.