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4.009 ~ 0115 ~ Stigmella alnetella
UK Status

Resident. Widespread, but seldom common. Found in Britain as far north as the Caledonian Canal.

Montgomeryshire Status

First recorded in 2013 at Middletown in the east of the county. A fairly uncommon species in north Wales. Probably overlooked.

Wingspan :   M & F 4-5mm.

Confusion species

Many species of Stigmella are very similar. One of the best ways of separating them is to examine the type of leaf-mine.
Flight time & Voltinity (Bivoltine)


Wherever the foodplant is found.



Lifestage data

Leaf miner. Eggs laid on underside of leaf. Larva produces a slender winding gallery with narrow linear frass throughout. Pupates in a dark reddish-brown cocoon.
Montgomeryshire photos

Photo by DB, 12th Oct 2013, Middletown
Leaf mine on Alder