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Leaf-mine:
The early gallery is filled with frass, later leaving clear
margins (British
leafminers). Like Stigmella
microtheriella the larva feeds on hazel or hornbeam, and
its mines are often found alongside that species in the same leaf.
However the mines of S. floslactella are generally wider,
less angular and contain more scattered frass than those of S.
microtheriella (UKMoths).
Larva:
The
larva is a dull yellow, head pale brown (British
leafminers).
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: June - July, September - October (British
leafminers; UKMoths).
Time
of year - adults: There are two generations, with adults on
the wing in May and August (UKMoths).
Distribution
in Britain: A widespread and fairly common species across most
of the British Isles (UKMoths)
including Banff, Bedford, Buckingham, Dunbarton, East Kent, East
Perth, East Ross, Hereford, Hunts, Lanark, Main Argyll, Mid Perth,
Mid-west York, Middlesex, North Aberdeen, North Devon, North Ebudes,
North Essex, North Hants, Oxford, South Aberdeen, South Lancaster,
Stafford, Stirling, Warwick, West Gloucester, West Kent, West Lancaster,
West Perth and Worcester
(NBN
Gateway distribution map - BRERC,
GiGL, HBRG,
JNCC, NE,
NESBRC,
SNH and SHWRG).
See also British
leafminers distribution map.
Also
recorded in the Republic of Ireland (Karsholt & van Nieukerken
in Fauna
Europaea).
Distribution
elsewhere: Austria, Belgium, Bulgaria, Croatia, Czech Republic,
Danish mainland, Estonia, Finland, French mainland, Germany, Hungary,
Italian mainland, Latvia, Lithuania, Norwegian mainland, Poland,
Romania, Russia - Central and East, Slovakia, Slovenia, Spanish
mainland, Sweden, Switzerland, The Netherlands and Ukraine (Karsholt
& van Nieukerken in Fauna
Europaea).
Parasitoids:
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