and case-bearer: Tubular silken case of only 5-6 mm. The case
is weakly constricted near the anal end, and strongly just behind
the mouth. The case is sharply bent there; therefore the mouth angle
is 0° and the case lies adpressed to the leaf. The fully developed
case normally is trivalved. Larvae at the underside of the leaf
(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).
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 not illustrated in UKMoths (check for update). The male genitalia, but not the female genitalia (check for update), are illustrated by the Lepidoptera
Hosts in Great Britain & Ireland:
of year - larvae: End of April - beginning of May (Bladmineerders van Europa).
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Bedfordshire (VC30),
Cheshire (VC58), Hertfordshire (VC20), North Wiltshire (VC7), Shropshire (VC40), South Essex (VC18),
South Hampshire (VC11), South Wiltshire (VC8), South-west Yorkshire and Stafford
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Distribution elsewhere: Widespread in continental Europe including Austria, Croatia,
Czech Republic, Danish mainland, Finland, French mainland, Germany,
Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Norwegian
mainland, Portuguese mainland, Romania, Slovakia, Spanish mainland,
Sweden, Switzerland and The Netherlands. Also recorded in Near East
(Karsholt and van Nieukerken in Fauna Europaea).
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British and Irish Parasitoids in Britain and elsewhere: