and case-bearer: First case formed of silk, including a small
leaf fragment, larva mining leaves. Feeding in spring in a new case
on catkins and also mining leaves. Very similar to case of C.
brown, trivalved, tubular silken case of c. 7 mm with a mouth angle
of c. 45°. Immediately after eclosion the larva makes a tiny
blotch mine of about 1.7 x 0.7 mm, then excises a leaf case from
it. Later this first case is enlarged with silk. No other miner
on Oak makes a similar mine, and its presence, in autumn and in
combination with full depth mines, is a good indication for flavipennella.
The small leaf fragment remains part of the case. In the fully developed
case its is to be found mid-dorsally, near the anal end. It is not
at all easy to find, as it is withered and discoloured, and may
be covered by detritus and newer silk. But if it is seen, it forms
the single reliable character to distinguish the case from that
of C. lutipennella, living on the same hostplants (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).
sclerites on the mesothorax are wedge shaped; they are triangular
in lutipennella (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
Distinguishing between the final cases of Coleophora flavipennella and Coleophora lutipennella on Oak (Quercus) is not possible but progress was made by Brian Goodey with their winter cases (Goodey, B., 1992. Ent. Rec. 104: p169-171). His findings were that the winter cases of these two Coleophora spp. could be distinguished by examining the anal end of the case. Coleophora flavipennella has a patch of leaf tissue incorporated into the case, seen as a raised area, whereas in Coleophora lutipennella this raised area does not exist (British
The adult is illustrated in UKMoths by Nigel Whinney.
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: Late September to late October, then April
to late May (British
of year - adults: The adults appear in July and August and are
attracted to light (UKMoths).
in Great Britain & Ireland: Distributed widely but locally
throughout most of Britain (UKMoths)
including Bedfordshire (VC30), Caernarvonshire (VC49), Cambridgeshire (VC29), East Kent (VC15),
East Norfolk (VC27), East Suffolk (VC25), Glamorganshire (VC41), Herefordshire (VC36), Hertfordshire (VC20),
Huntingdonshire (VC31), Middlesex (VC21), North Essex (VC19), North Hampshire (VC12), North Somerset (VC6), North Wiltshire (VC7), Shropshire (VC40), South Lancashire (VC59), South Wiltshire (VC8),
Staffordshire (VC39), Surrey (VC17), West Gloucestershire (VC34), West Kent (VC16), West Lancashire (VC60),
West Norfolk (VC28), West Suffolk (VC26), Westmorland (VC69) and Worcestershire (VC37) (NBN
recorded in the Republic of Ireland (UKMoths). See also Ireland's NBDC interactive map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe, including Austria,
Belgium, Croatia, Czech Republic, Danish mainland, Estonia, Finland,
French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania,
Luxembourg, Macedonia, Norwegian mainland, Poland, Portuguese mainland,
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: