Larva feeds on seeds. The full-grown case is 5 mm long, the oral
end enclosed within a seed-head (British
The case is also illustrated in UKMoths.
Case of Coleophora
taeniipennella on Juncus spp
Image: © Guy Meredith (British
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).
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 male
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
elsewhere: Currently unknown.
of year - larvae: August to November (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Anglesey (VC52), Bedfordshire (VC30), Caernarvonshire (VC49),
Cambridgeshire (VC29), Dorset (VC9), East Kent (VC15), East Ross (VC106), East Suffolk (VC25), Easterness (VC96),
Glamorganshire (VC41), Herefordshire (VC36), Huntingdonshire (VC31), Merionethshire (VC48), North Aberdeenshire (VC93), North Ebudes (VC104), North Wiltshire (VC7), Northamptonshire (VC32), Shropshire (VC40),
South Aberdeenshire (VC92), South Hampshire (VC11), South Lancashire (VC59), South Wiltshire (VC8),
Staffordshire (VC39), Surrey (VC17), West Cornwall (VC1), West Gloucestershire (VC34), West Kent (VC16),
West Norfolk (VC28), West Suffolk (VC26) and Worcestershire (VC37) (NBN
recorded in the Republic of Ireland and Northern 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 Albania,
Austria, Belgium, Croatia, Czech Republic, Danish mainland, Finland,
French mainland, Germany, Greek mainland, Hungary, Italian mainland,
Latvia, Liechtenstein, Lithuania, North Aegean Is., Norwegian mainland,
Poland, Portuguese mainland, Romania, Russia - South, Sardinia,
Slovakia, Spanish mainland, Sweden, Switzerland and The Netherlands.
Also recorded in the Near East (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: