| UK Status 
 Resident. Locally common over much of Britain.
 
 Montgomeryshire Status
 
 A locally common species in the county.
 
 Wingspan
:
  M & F, 14-22mm.
 
 Confusion species
 
 C. fagiglandana.
 
 | Flight time & Voltinity
(Univoltine) 
 Habitat
 
 Margins, rides, glades of woods and hedgerows.
 
 Foodplant
 
 Oak and sweet chestnut.
 
 Lifestage data
 
 Nut feeder. Eggs laid on upperside of leaves. Larva lives in the nut,
eating out the kernel. Pupates in a tough brown silken cocoon in rotten
wood, under moss or in litter or soil.
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