of mine and larva unknown. Because the adult fly closely resembles
that of A. nigrella, possibly
this applies as well to mine and larvae (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).
Dark brown; posterior spiracles widely separated, each with 3 bulbs.
(Spencer, 1976: 102).
Rear spiracula not on a common base, with 3 bulbs (Spencer, 1966a) (Bladmineerders van Europa).
Hosts in Great Britain & Ireland:
of year - mines: Currently unknown.
of year - adults: June-July.
in Great Britain & Ireland: Kent (Dartford), Suffolk (Felixstowe
and Newmarket) (Spencer, 1972b:
33), Warwickshire (Sowe Common) (Robbins,
1991: 135) and Cambridgeshire (VC29), North Somerset and West Gloucestershire
elsewhere: Widespread in continental Europe including Denmark
(Spencer, 1976: 102), The
Netherlands, Belgium (Bladmineerders van Europa), Germany (Spencer,
1976: 546), Czech Republic, French mainland, Hungary, Lithuania,
Poland, Slovakia and Switzerland (Martinez in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.