UK Status 
 
Resident. Quite well distributed throughout the
British Isles, but more common further north. 
 
Montgomeryshire Status
  Recorded from a handful of well scattered sites in the north and west of the county.
 
 
Wingspan
:
  M & F, 12-16mm. 
 Confusion species 
 
Some species of Incurvaria are very similar. One of the best ways of
separating them is to identify the pupal case. 
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Flight time & Voltinity
(Univoltine) 
 Habitat
  
Wherever the foodplant is found. 
 Foodplant
  
Birch. 
 Lifestage data
  
Leaf miner/Case-bearing. Eggs laid on leaf. Larva forms small white
blotches, then a case which falls to ground. The larva continues to
feed and case is finally attached to a vertical surface where pupation
takes place. | 
 
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