Season (Adult / Immature):
National Status: Common
Local Status: Rare and very local resident.
Local Record: Grade 4 adult, 2 leaf-mine. See here for explanation
Flight time: July-Aug.
|Year first recorded||2013||1914|
|Year last recorded||2013||2014|
|Number of records||2||31|
|Number of individuals||0||44|
For the county, we have a total of 33 records from 26 sites. First recorded in 1914.
2013 (CHF): This is by far the most easily-identified species of Stigmella on oak. It is quite local in the county and has only so far been found in the south. The mine is a long, slowly widening, slender corridor, with a characteristic sinuous course. The corridor is completely filled with coils of green frass which turn brown later. Fresh mines are the same colour as the leaf and may be hard to spot. When the larva vacates the mine it soon becomes green and easier to spot.
Argus 69, 2013:
VC61. Allerthorpe Common, mines on oak 24.10.2013 (CHF). NEW VICE-COUNTY RECORD.