|4.055 ~ 0081 ~ Stigmella hemargyrella|
Resident. Locally common throughout the British Isles.
First recorded in 2013 at Commins Coch in the west of the county. Since which there have been several scattered records from across the county.
Wingspan : M & F 5-6mm.
Many species of Stigmella are very similar. One of the best ways of separating them is to examine the type of leaf-mine in the foodplant.
|Flight time & Voltinity
Wherever the foodplant is found.
Leaf miner. Eggs laid on either side of leaf. Larva produces a slender gallery with linear frass, but the frass becomes coiled after the first moult more irregular later on. Pupates in a pale yellow cocoon.
Photo by PRW, 1st Nov 2013, Commins Coch
Leaf mine on Beech