Egg on the leaf margin or the underside of the leaf. The mine is
a corridor, narrow at first, for about 10 mm descending towards
the base of the leaf, meticulously following the leaf margin. Then
the corridor reverses its direction, and widens into a blotch that
may occupy half of the leaf, to the midrib. Frass in the corridor
as a broad central ribbon; broadly scattered in the blotch (Bladmineerders van Europa).
The mine, filled with black frass, follows the leaf margin for about 1cm then abruptly turns and forms a blotch, which occupies half the leaf (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).
head dark brown (Emmet, 1983a) (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 not illustrated by the Lepidoptera
Hosts in Great Britain & Ireland:
of year - larvae: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including North Ebudes (VC104),
Gateway). The only known host has a northern distribution. See also British
leafminers distribution map.
NBN Grid Map:
Distribution elsewhere: Widespread in continental Europe including Austria, Bosnia and
Herzegovina, Bulgaria, Croatia, Czech Republic, Estonia, French
mainland, Germany, Hungary, Italian mainland, Lithuania, Republic
of Moldova, Poland, Romania, Slovakia, Slovenia, Switzerland 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: