Season (Adult / Immature):
National Status: Common
Local Status: Very common and fairly widespread resident.
Local Record: Grade 3 adult, 1 leaf-mine See here for explanation
Flight time: Two generations, Apr-May, Jul-Aug.
|Year first recorded||2009||1859||1883||2000||1883|
|Year last recorded||2014||2014||2014||2014||2013|
|Number of records||34||65||100||111||37|
|Number of individuals||115||96||491||22||0|
For the county, we have a total of 347 records from 299 sites. First recorded in 1859.
Most records are of leaf-mines.
Sutton & Beaumont, 1989: Widely distributed and common in all five vice-counties.
2013 (CHF): Widespread and common across the county where the larva mine beech leaves. This is the commoner of the two beech-feeding Stigmella species. The mine is usually very distinctive. The egg is laid under the leaf in the axil of a vein. The corridor then zigzags outwards between two lateral veins in the direction of the leaf margin. The frass is never coiled. It must be distinguished from Stigmella hemargyrella where the egg is laid away from the midrib, there is a section of coiled frass, and the mine is much more untidy.