UK Status
Resident. Widespread and generally common throughout the British Isles as far north as Perthshire.
Montgomeryshire Status
Recorded from two sites in the north of the county at Lake Vyrnwy and Llanfyllin.
Wingspan
:
M & F, 13-17mm.
Confusion species
None.
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Flight
time & Voltinity
(Univoltine)
Habitat
Woodland, parks and commons.
Foodplant
Birch.
Lifestage data
Catkin feeder. Eggs, oviposition site not documented. Larva feeds
inside a catkin. Pupates in whitish silken cocoon in larval habitation
or spun up in leaf litter on the ground. |

Click map
for larger image
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