Leaf-miner: The larvae create a distinctive blotch mine in the leaves of
apple (Malus). The larva
cuts an exit hole on the underside of the leaf, which distuingishes
the mine from that of Ectoedemia
atricollis (UKMoths).
Egg
either at upperside or underside of the leaf, close to the leaf
margin. The mine begins as a narrow corridor which is strongly contorted,
unless it lies close to the leaf margin. The corridor abruptly widens
into an elongate blotch, that often runs over the initial corridor.
The frass is brown; it almost fills the initial corridor; in the
blotch it is concentrated in its first section. Pupation external;
exit slit invariably in the lower epidermis. In Ectoedemia
atricollis, of which the mine bears some resemblance to
the one of pulverosella the exit slit is in the upper epidermis;
moreover, atricollis is much later in the year (Bladmineerders van Europa).
The
gallery leads to large brownish blotch (British
leafminers).
Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).
Larva
yellow, head pale brown (British
leafminers). Yellow (Emmet, 1983a); Gustafsson and van Nieukerken
(1990a) give a description of the larva (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
Adult:
The adult is not illustrated in UKMoths (check for update).
The species is included in mothdissection.co.uk.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: June and July (UKMoths;
British
leafminers).
Time
of year - adults: May (UKMoths).
Distribution
in Great Britain and Ireland: Fairly well distributed in the
British Isles, including Anglesey, Bedfordshire, Cambridgeshire, Cheshire, Denbighshire, Derbyshire, Dorset, Dumfriesshire, Dunbartonshire, Durham, East Cornwall, East Kent, East Norfolk, East Suffolk, Glamorgan, Haddington,
Hertfordshire, Isle of Wight, Kincardineshire, Kirkudbrightshire, Linlithgow, North Aberdeenshire, North Devon, North Hampshire,
North Northumberland, North Somerset, North-west Yorkshire, Shropshire, South Aberdeenshire, South Wiltshire, Stafford, Sitrling, West Cornwall, West Gloucestershire, West Norfolk, West Suffolk, Wigtownshire and Worcestershire (NBN
Atlas) and Ireland
(Fauna Europaea).
See also British
leafminers distribution map.
Also recorded in the Republic of Ireland (National Biodiversity Data Centre Map).
Distribution
elsewhere: Widespread in continental Europe including Austria,
Bulgaria, Croatia, Czech Republic, Danish mainland, Estonia, Finland,
Germany, Hungary, Latvia, Lithuania, Norwegian mainland, Poland,
Russia - Central and Northwest, Slovakia, Slovenia, Sweden, Switzerland,
The Netherlands and Ukraine (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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