|4.009 ~ 0115 ~ Stigmella alnetella|
Resident. Widespread, but seldom common. Found in Britain as far north as the Caledonian Canal.
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.
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
Wherever the foodplant is found.
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.
Photo by DB, 12th Oct 2013, Middletown
Leaf mine on Alder