Leaf-miner,
seed / flower feeder: The larva starts to mine the leaves and then later feeds on flowers
and seeds (British
leafminers, as C. artemisiella).
Squat
tubular silken case of 6-7 mm. The front half is covered with felt,
the rear half is greyish with some darker length lines. The case
is trivalved, the mouth angle is c. 15-30°. The larva not only
lives on the leaves, but also feeds in the inflorescence (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).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).The larval case is also illustrated in UKMoths.
The larva leaves the food plant, when fully fed in September, and
attaches its case low down on a stem. The case is trivalved and
has longitudinal stripes (British
leafminers, as Coleophora artemisiella).
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: August - June (British
leafminers, as Coleophora artemisiella).
Time
of year - adults: July - August (UKMoths).
Distribution
in Great Britain and Ireland: England including Durham, East Norfolk, East Suffolk, North Essex, North Northumberland and West Norfolk
(NBN
Atlas). It can be found
on the edges of salt marshes on the East coast (British
leafminers, as Coleophora artemisiella).
Distribution
elsewhere: Widespread in continental Europe including Austria,
Belgium, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania,
Norwegian mainland, Poland, Romania, Russia - South, Slovakia, Spanish
mainland, Sweden, Switzerland, The Netherlands and Ukraine. Also
recorded from the East Palaearctic and Near East (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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