and Leaf-miner: A gall in petiole, later mine in leaf-blade,
in 'green island' (British
egg is placed on the petiole, about a cm below the base of the leaf;
often one egg at either side. The larva first bores in the distal
part of the petiole, that shows a local swelling. When the larva
reaches the leaf it makes an elongate triangular blotch between
the leaf margin and the first side vein, or, less frequently, between
midrib and side vein. Frass in two bands, parallel to the sides
of the mine, created by the passage of the larva when it retreates
into the petiole. The larva mainly feeds at night. Pupation external
(Bladmineerders van Europa).
of Ectoedemia turbidella
on Populus x canescens
Image: © David Manning (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).
Whitish, no ventral plates; see Gustafsson and van Nieukerken
(1990a) for a description (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 female genitalia, but not the male genitalia (check for update), are illustrated by the Lepidoptera Dissection
Hosts in Great Britain & Ireland:
of year - larvae: July - October (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Bedfordshire (VC30),
Berkshire (VC22), Cambridgeshire (VC29), Hertfordshire (VC20), Middlesex (VC21), South Essex (VC18),
South-west Yorkshire (VC63), West Kent (VC16) and West Suffolk (VC26) (NBN
See also British
leafminers distribution map. Recently (November, 2010) discovered
in Surrey (Rosehill Park) by Derek Coleman.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Albania,
Austria, Belarus, Belgium, Bosnia and Herzegovina. Bulgaria, ? Crete,
Croatia, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania,
Poland, Romania, Russia Central, Russia - Northwest, Slovakia, Slovenia,
Spanish mainland, Sweden, Switzerland, The Netherlands, Ukraine
and Yugoslavia (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
known host species in Britain and elsewhere:
British and Irish Parasitoids in Britain and elsewhere: