Resident. Widespread throughout the British Isles.
Montgomeryshire Status
In recent years it has only been recorded from the north-east of the county.
Wingspan
:
M & F, 13-16mm.
Confusion species
None.
Flight time & Voltinity
(Univoltine)
Habitat
Wherever the foodplant is found.
Foodplant
Blackthorn.
Lifestage data
Leaf miner/web forming. Eggs laid on foodplant. Larva first mines the
leaf making a white blotch, later feeding externally, in a web
gregariously. Pupates in a white cocoon under the web.