When young, the larva mines mainly the leaves or the stem of Sparganium
or Nuphar lutea. It hibernates. Later it lives amongst spun
leaves just below the surface of the water. Pupation in a white
silk cocoon attached to the foodplant at or just below the water-level
narrow corridor, on or alongside the midrib. The corridor may descend
below the water surface, and does contain frass. After some time
the larva cuts itself a case out of the mine, and continues living
free, partly under water (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).
Yellowish, with a brown dorsal line and a brown head (Hering, 1957a)
(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.
The genitalia are not illustrated by the Lepidoptera Dissection
Group (check for update).
Hosts in Great Britain & Ireland:
of year - larvae:
From August up to May the next year (Bladmineerders van Europa).
of year - adults: On the wing during July and August. It flies
in the evening and at night, and comes readily to light (UKMoths).
in Great Britain & Ireland: Found fairly commonly around
lakes, rivers and ponds throughout Britain (UKMoths)
including, Anglesey (VC52), Bedfordshire (VC30), Breconshire (VC42), Buckinghamshire (VC24), Caernarvonshire (VC49),
Cambridgeshire (VC29), Carmarthenshire (VC44), Cheshire (VC58), Cumberland (VC70), Derbyshire (VC57),
Dorset (VC9), East Cornwall (VC2), East Gloucestershire (VC33), East Kent (VC15), East Norfolk (VC27),
East Suffolk (VC25), Easterness (VC96), Glamorganshire (VC41), Herefordshire (VC36), Huntingdonshire (VC31),
Middlesex (VC21), Monmouthshire (VC35), Montgomeryshire (VC47), North Aberdeenshire (VC93), North Essex (VC19), North Somerset (VC6), North Wiltshire (VC7), Pembrokeshire (VC45), Renfrewshire (VC76),
Shropshire (VC40), South Devon (VC3), South Essex (VC18), South Hampshire (VC11), South Lancashire (VC59),
South Wiltshire (VC8), Staffordshire (VC39), Surrey (VC17), Warwickshire (VC38), West Gloucestershire (VC34),
West Lancashire (VC60), West Norfolk (VC28), West Suffolk (VC26), Westmorland (VC69) and Worcestershire (VC37) (NBN
Gateway) and the 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: as stagnata
elsewhere: Widespread in continental Europe including Austria,
Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czech
Republic, Danish mainland, Estonia, Finland, French mainland, Germany,
Gibraltar, Italian mainland, Latvia, Lithuania, Luxembourg, Macedonia,
Malta, Republic of Moldova, Norwegian mainland, Poland, Romania,
Russia - Central and North, Sicily, 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.