Galler
and Leaf-miner: A gall in petiole, later mine in leaf-blade,
in 'green island' (British
leafminers).
The
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).
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Mine
of Ectoedemia turbidella on Populus x canescens
Image: © David Manning ( British
leafminers) |
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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).
Adult:
The adult is illustrated in UKMoths.
The species is included in mothdissection.co.uk.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: July - October (British
leafminers).
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Britain including Bedfordshire,
Berkshire, Cambridgeshire, Hertfordshire, Middlesex, South Essex,
South-west Yorkshire, West Kent and West Suffolk (NBN
Atlas).
See also British
leafminers distribution map. Recently (November, 2010) discovered
in Surrey (Rosehill Park) by Derek Coleman.
Distribution
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 (Fauna Europaea).
NBN Atlas links to known host species:
of
known host species in Britain and elsewhere:
British and Irish Parasitoids in Britain and elsewhere:
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