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Leaf-mine:
A narrow contorted gallery leading to a whitish blotch with scattered
frass centrally. The early gallery can merge with the blotch and
there are often several to a leaf (British
leafminers).
The
larva begins by making a full depth corridor, erratic in width and
course; frass black, in an irregular central line. Later the larva
makes a blotch, with frass in irregular clouds. This blotch can
be a continuation of the corridor, but may just as well be on a
different leaf. Often several mines in a leaf; in such cases the
entire leaf me be mined out. Mines white at first, turning brown
later. The larva lies venter-upwards in the mine. Pupation external
Bladmineerders
van Europa).
The
mine is also described and illustrated in UKMoths.
Larva:
The larva is light yellow, with darker thoracic legs (British
leafminers). The larva is also described and illustrated
in Bladmineerders
van Europa.
Pupa:
Occasionally in a mined leaf or in a cocoon between the leaves or
on the leaves (British
leafminers).
Adult:
The adult is illustrated in UKMoths.
The female
genitalia, but not the male genitalia (check
for update), are illustrated by the Lepidoptera Dissection Group.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - larvae: June - July (British
leafminers).
Time
of year - adults: Unknown.
Distribution
in Great Britain & Ireland: Distributed locally in southern
and western England and Wales, there are also scattered records
from further north (UKMoths)
including Cambridge, Denbigh, East Kent, Hereford, Monmouth, North
Devon, North Hants, Salop, South Lancaster, South Somerset, South
Wilts, South-west York, Surrey, West Cornwall, West Kent and West
Suffolk (NBN
Gateway distribution map - BRERC,
GiGL, JNCC
and SHWRG).
See also British
leafminers distribution map.
Also
recorded in Republic of Ireland (UKMoths;
Karsholt & van Nieukerken in Fauna
Europaea).
NBN
Grid map:
Distribution
elsewhere: Widespread in Europe including Albania, Austria,
Belgium, Bulgaria, Croatia, Czech Republic, Danish mainland, Estonia,
Finland, French mainland, Germany, Hungary, Italian mainland, Latvia,
Lithuania, Norwegian mainland, Poland, Russia - Central, Slovakia,
Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine
(Karsholt & van Nieukerken in Fauna
Europaea).
NBN
interactive distribution maps of known host species in Britain and
elsewhere:
Parasitoids
in Britain and elsewhere: Unknown.
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