reed and similar plants are the larval foodplant. The larva of this
species has a peculiar habit of cutting part of a leaf to act as
a raft, using this to float on the water to a new foodplant when
whitish, rather inflated corridor, sometimes several tens of centimeters
long, running towards the leaf sheath. Frass in coarse grains, in
a distinct central line. Now and then the larva makes a elongate
case from leaf material and uses it to float to another hostplant.
The case may stick for some time to the new host. The larva pupates
in a stem, after having made an exit hole and closed it with silk
(Bladmineerders van Europa).
Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).
Greyish green; head black, prothoracic shield black, divided. Thoracic feet with an antero-mesal globular structure (Neunzig, 1987a) (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The adult is illustrated in UKMoths.
and female genitalia are illustrated by the Lepidoptera Dissection
Hosts in Great Britain & Ireland:
of year - larvae:
June; larva overwinters (Bladmineerders van Europa).
of year - adults: June and July and usually encountered at light
in Great Britain & Ireland: Southern half of Britain, inhabiting
marshy areas, ditches and similar habitats (UKMoths).
including Bedfordshire (VC30), Caernarvonshire (VC49), Cambridgeshire (VC29), Carmarthenshire (VC44),
Cheshire (VC58), Denbighshire (VC50), Derbyshire (VC57), East Kent (VC15), East Norfolk (VC27), East Suffolk (VC25), East Sussex (VC14), Glamorganshire (VC41), Huntingdonshire (VC31), North Essex (VC19), North Hampshire (VC12), North Somerset (VC6), North Wiltshire (VC7), Shropshire (VC40), South Essex (VC18),
South Hampshire (VC11), South Somerset (VC5), Staffordshire (VC39), Surrey (VC17), Warwickshire (VC38),
West Cornwall (VC1), West Gloucestershire (VC34), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26), West Sussex (VC13), Westmorland (VC69) and Worcestershire (VC37) (NBN
Gateway) and Channel Is. (Karsholt and van Nieukerken in Fauna Europaea).
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna Europaea). See also Ireland's NBDC interactive map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Austria,
Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Corsica, Croatia,
Czech Republic, Danish mainland, Estonia, Finland, French mainland,
Germany, Greek mainland, Hungary, Italian mainland, Latvia, Lithuania,
Luxembourg, Macedonia, Norwegian mainland, Poland, Romania, Russia
- Central and South, Slovakia, Spanish mainland, Sweden, Switzerland
and The Netherlands (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.