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Seed-feeder:
Larva feeds on seeds (British
leafminers).
Larva:
The
full-grown case is 6mm long, and not separable from those of C.glaucicolella (British
leafminers).
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere: Unknown.
Time
of year - larvae: August to October, some larvae feeding again
in the spring (British
leafminers).
Time
of year - adults: June and July, possibly late April and May,
at sunrise, dusk and night (UKMoths).
Distribution
in Britain: The most widespread and common British Coleophora
species, occurring wherever the appropriate rush species grow and
seed, up to 660 metres above sea level in some years (UKMoths),
including Banff, Denbigh, East Kent, East Perth, East Sutherland,
Easterness, Edinburgh, Fife, Hereford, Hunts, Kincardine, Kirkudbright,
Lanark, Mid Perth, North Aberdeen, North Ebudes, North Essex, North
Hants, North Somerset, Peebles, Selkirk, Salop, South Aberdeen,
South Hants, South Lancaster, South Somerset, South Wilts, Stafford,
Surrey, West Cornwall, West Gloucester, West Perth, Westmorland,
Worcester (NBN
Gateway distribution map - BRERC,
GiGL, HBRG,
JNCC, NE,
NESBRC,
SNH and SHWRG),
Northern Ireland and the Channel Is. (Karsholt & van Nieukerken
in Fauna
Europaea).
Also
recorded in the Republic of Ireland (Karsholt & van Nieukerken
in Fauna
Europaea).
Distribution
elsewhere: Widespread in Europe including Austria, Belgium,
Bulgaria, Crete, Croatia, Czech Republic, Danish mainland, Estonia,
Finland, French mainland, Germany, Greek mainland, Hungary, Iceland,
Italian mainland, Latvia, Liechtenstein, Lithuania, Luxembourg,
Norwegian mainland, Poland, Romania, Russia - Central and South,
Sardinia, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland,
The Netherlands and Ukraine (Karsholt & van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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