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Leaf-mine:
Details unknown.
Larva:
The full grown larval case is very similar to that of C.
alticolella, but the larvae can be differentiated (UKMoths).
The larva is illustrated in UKMoths.
Pupa:
Details
unknown.
Hosts
in Britain:
Hosts
elsewhere: Unknown.
Time
of year - mines: Unknown.
Time
of year - adults: June to August at sunrise, dusk and night.
Distribution
in Britain: Widespread and common in Britain (UKMoths),
including, East Kent, East Ross, Fife, Hunts, Mid-west York, North
Essex, North Hants, North Wilts, South Aberdeen, South Hants, South
Lancaster, Surrey, West Cornwall, West Lancaster, Worcester (NBN
Gateway distribution map - BRERC,
GiGL, HBRG,
JNCC, NE,
NESBRC,
SNH and SHWRG)
and Northern Ireland (Karsholt & van Nieukerken in Fauna
Europaea).
It
is often abundant on salt marshes. Sometimes goes unrecorded because
of confusion with another Juncus feeding species, C.
alticolella (UKMoths).
Also
recorded in the Republic of Ireland (Karsholt & van Nieukerken
in Fauna
Europaea).
Distribution
elsewhere: Widespread in Europe including Albania, Austria,
Belgium, Bulgaria, Croatia, Czech Republic, Danish mainland, Estonia,
Faroe Is., Finland, French mainland, Germany, ? Greek mainland,
Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Madeira,
Norwegian mainland, Poland, Portuguese mainland, Romania, Russia
- Central, North and South, Sardinia, Sicily, Slovakia, Slovenia,
Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine
(Karsholt & van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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