and case-bearer: Larva mines leaves, forming a case from an excised mine. This case
is later extended, and widened by slitting the ventral side to insert
a gusset. The full-grown case is 8 mm long with a single ventral
grown larva in a slender greyish white three-valved tubular silken
case of c. 8 mm; mouth angle about 45°. Often several cases
together on a small number of plants (Bladmineerders van Europa).
case and feeding holes are illustrated in the Encyclopedia of Life.
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).
Described by Emmet, et al. (1996a) (Bladmineerders van Europa).
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 and female genitalia are illustrated by the Lepidoptera
Hosts in Great Britain & Ireland:
of year - larvae: September to November, feeding again from
March to May (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Bedfordshire (VC30),
East Suffolk (VC25), Glamorganshire (VC41), Isle of Wight (VC10), North Essex (VC19), West Suffolk (VC26) and Worcestershire (VC37) (NBN
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elsewhere: Widespread in continental Europe including Austria,
Belgium, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania,
Luxembourg, Poland, Russia - South, Slovakia, Sweden, ? Switzerland
and The Netherlands (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: