Leaf-miner: A
blotch mine is formed with a small area of browning of the leaf
around the egg (British
leafminers).
Flat,
upper-surface, oval blotch without a preceding gallery, with clear
amounts of greenish frass. Sometimes more than one mine in a leaflet,
that can merge. Pupation outside the mine (Bladmineerders van Europa).
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).Widest in the metathorax; segment limits deeply constricted. Head
shining pale yellow (darker in earlier instars), mouth parts light
brown. Prothoracic plate divided, obscure, with a pair of darkened
spots anteriorly. Thoracic feet small, shining pale yellow like
the body (Emmet, 1985a) (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 illustrated in UKMoths. The species is included in mothdissection.co.uk.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: August.
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Britain including Isle of Wight, Merionethshire, South Devon, South-west Yorkshire and West Cornwall (NBN
Atlas). A very local mainly coastal
species, tending to be confined to cliffs and undercliffs (British
leafminers). See also British
leafminers distribution map.
Also
recorded in the Republic of Ireland (Fauna Europaea).
Distribution
elsewhere: Northwest Europe including Estonia, Finland, Latvia,
Norwegian mainland and Sweden (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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