Leaf-miner: Lower-surface tentiform mine, 13-15 mm long, with several longitudinal folds (Bladmineerders van Europa). Frass to one side (British
leafminers)
Difficult to distinguish between P. hostis and P. blancardella on the basis of mine characteristics - both form arched tubes on the leaf of M.sylvestris. P.hostis tends to make the larger mine on Malus sylvestris. The undersurface of the mine is creased, with other creases alongside. This species was previously identified as P. cydoniella in the UK (British
leafminers)
Larva: Details unknown.
Pupa: In a cocoon (British
leafminers). Pupa 3.5 - 3.9 mm; cremaster similar to that of Ph. anceps (Bladmineerders van Europa).
Adult:
The adult is illustrated in UKMoths.
The species is included in mothdissection.co.uk.
Hosts in Great Britain and Ireland:
Hosts elsewhere:
Time
of year - larvae:
Time
of year - adults:
Distribution
in Great Britain and Ireland: Fleet, Hants (British
leafminers); Bedfordshire, Huntingdonshire and Stirling (NBN Atlas).
See also British
leafminers distribution map.
Distribution
elsewhere: Widespread in continental Europe including Germany, Italian mainland, Macedonia, Norwegian mainland and Yugoslavia (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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