UK Status
Resident. Quite well distributed throughout the
British Isles, but more common further north.
Montgomeryshire Status
Just three records in the north of the county from the Lake Vyrnwy area in 2007 & 2010.
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. |

Click map
for larger image
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