Leaf-miner: A gallery filled with green frass. In the older gallery the frass
turns brown (British
narrow corridor. The coiled frass is greenish (blackish brown in
old or dried mines). Generally the entire width of the corridor
is filled up, making the mine rather inconspicuous. The sides of
the corridor are not straight, rather irregular (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).
Bright green; see Gustafsson and van Nieukerken (1990a) and Schoorl
et. al. (1985a) for an extensive description (Bladmineerders van Europa). The larva is green (British
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: End of June-early July, August-early September
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread in England including
Herefordshire (VC36), Middlesex (VC21), Surrey (VC17), West Gloucestershire (VC34), West Kent (VC16) and Worcestershire (VC37) (NBN
See also British
leafminers distribution map.
NBN Grid Map:
elsewhere: Widespread in continental Europe including Austria,
Bulgaria, Corsica, Croatia, Czech Republic, Danish mainland, Estonia,
Finland, French mainland, Germany, Greek mainland, Hungary, Italian
mainland, Lithuania, Norwegian mainland, Poland, Romania, Russia
- Central, East and South, Slovakia, Slovenia, Sweden, Switzerland,
Ukraine and Yugoslavia (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: