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Leaf-mine: The mine starts from brown spot, later filled with greenish
frass. The mine is difficult to locate initially but becomes brown
as it ages (British
leafminers).
Egg
at the underside, often in a vein axil. The mine is a slender, little
widening corridor. Its first part is strongly contorted; the leaf
tissue that is cut off thereby is killed, mostly resulting in a
brown spot. The remainder of the corridor in contrast is very little
contorted, often remarkably straight, when it runs alongside a vein.
The corridor is almost completely filled with coiled frass, that
is green when fresh, brown later. Pupation external (Bladmineerders
van Europa).
Larva:
The larva is yellow but appears green in mine (British
leafminers).
The
larva is yellow, but appears green when inside the mine. See Gustafsson
and van Nieukerken (1990a) for a description (Bladmineerders
van Europa).
Pupa:
Details unknown.
Adult:
Not illustrated in UKMoths (check for update). The genitalia are not illustrated by the Lepidoptera
Dissection Group (check for update).
Hosts in Britain:
Hosts elsewhere:
Time
of year - larvae: June - July, September - October (British
leafminers).
Time
of year - adults: On the wing in May and August (UKMoths).
Distribution
in Great Britain and Ireland: Occurring in southern and north-west
England (UKMoths)
including Bedfordshire, Buckinghamshire, Cambridgeshire, Carmarthenshire,
Cheshire, Derbyshire, East Kent, East Norfolk, East Suffolk, Glamorgan,
Hertfordshire, Huntingdonshire, Monmouthshire, North Essex, North
Hampshire, North Somerset, Northamptonshire, Shropshire, South Lancaster,
South Wiltshire, Stafford, Surrey, West Kent, West Norfolk, West
Suffolk and Worcestershire (NBN
Gateway - N.B. includes Watsonian Vice Counties having publicly
available records that fall within or overlap the vice county border
at 10km resolution or better i.e. a record for a vice county may
relate to an adjacent vice county - for included datasets see NBN
Grid map below). See also British
leafminers distribution map.
Also
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna
Europaea).
NBN Grid map: Note that not all datasets on the NBN Gateway may be available on the map below. If you are an NBN Gateway registered user you can request access for missing datasets via the link 'Open interactive map in new window' below.
Distribution
elsewhere: Widespread in continental Europe including Austria,
Belgium, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Lithuania, Poland, Russia Central, Sweden,
Switzerland, The Netherlands and Ukraine. Also recorded in East
Palaearctic (Karsholt and van Nieukerken in Fauna
Europaea).
NBN
interactive distribution map(s) of known host species in Great Britain
and Ireland and elsewhere:
Parasitoids
in Britain and elsewhere: Unknown.
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