and case-bearer: The larva feeds internally at first on seeds and then makes a distinctive
'dirty-looking' case, which is coated with dark granules (British
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 adult is illustrated in UKMoths. The male
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: September to October (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Anglesey (VC52),
Caernarvonshire (VC49), Denbighshire (VC50), East Suffolk (VC25), Glamorganshire (VC41) and North
Gateway). The known host plant species are usually found on or near the coast.
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna Europaea). See also Ireland's NBDC interactive map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Belgium,
Danish mainland, Estonia, Finland, French mainland, Germany, Hungary,
Latvia, Norwegian mainland, Poland, Romania, Russia - North, Sweden,
The Netherlands and Ukraine (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.