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Coleophora
milvipennis Zeller, 1839 Buff Birch Case-bearer Coleophora milvipennis Zeller, 1839. Isis: 208. |
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Leaf-miner and case-bearer: Larva mining leaves, the blotches brownish. The final case is 8-11 mm long, slender, and fixed at 45° to leaf surface, with anal end laterally compressed. The case has a serrated keel due to formation from the edge of a leaf (British leafminers). Spatulate leaf case. Strikingly slender, bivalved case, 8-11 mm long, with a slight curve at the rear end, that is keeled and often toothed. The end is laterally compressed. Mouth angle 45°. The full depth mines often are conspicuously brown (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). The larva is illustrated in Bladmineerders van Europa. Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples). Adult: The adult is not illustrated in UKMoths (check for update). The species is included in mothdissection.co.uk. Hosts in Great Britain and Ireland:
Hosts elsewhere:
Time of year - larvae: August to September, with some larvae developing more slowly, and feeding again in April and May (British leafminers). Time of year - adults: Currently unknown. Distribution in Great Britain and Ireland: Britain including Bedfordshire, Cambridgeshire, Dorset, East Cornwall, East Kent, East Norfolk, East Ross, East Suffolk, Flintshire, Glamorgan, Herefordshire, Hertfordshire, Huntingdonshire, Isle of Wight, Leicestershire, North Essex, North Hampshire, Nottinghamshire, Shropshire, South Aberdeenshire, South Hampshire, South Somerset, South Wiltshire, South-west Yorkshire, Stafford, Stirlingshire, Surrey, West Gloucestershire, West Norfolk, West Perthshire, West Suffolk, Westmorland and Worcestershire (NBN Atlas). Also recorded in the Republic of Ireland (Fauna Europaea and National Biodiversity Data Centre Map). Distribution elsewhere: Widespread in continental Europe including Austria, Belgium, Croatia, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Macedonia, Norwegian mainland, Poland, Romania, Russia - Central, North and South, Sardinia, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland and The Netherlands. Also recorded in East Palaearctic and Near East (Fauna Europaea). NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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| Last updated 11-Jul-2019 Brian Pitkin |  |
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