Leaf-miner:
A strongly contracted upper-surface tentiform mine, generally in
the lower third of the leaf, beginning at the leaf base. Often a
second or third mine is made, starting from the leaf tip. These
secondary mines begin as a narrow, almost completely frass-filled
corridor, that continues down to the leaf base.al the while widening
into a tentiform mine. Pupation outside the mine (Steuer, 1980a)
(Bladmineerders van Europa).
Mines
found in plants in open or semi-shade (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).
Head pale honey coloured, mouth-parts dark brown; prothoracic and
anal plates and thoracic legs translucent yellowish green; body
dull green, tinged yellowish ventrally (Langmaid, 2007a). Steuer
(1980a) gives a detailed description, but it is not quite certain
that this indeed refers to tengstromi (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: Larvae overwinter in mines, which slowly develop
to June (British
leafminers).
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Britain including Kent, Hampshire,
Oxfordshire, Monmouthshire and Elgin (British
leafminers).
Distribution elsewhere: Widespread in continental Europe including Austria, Danish mainland,
Estonia, Finland, Germany, Latvia, Norwegian mainland, Poland, Russia
- North and Northwest, Sweden and Switzerland (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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