Season (Adult / Immature):
National Status: Common
Local Status: Uncommon and thinly distributed or restricted resident.
Local Record: Grade 3 adult, 2 leaf-mine See here for explanation
|Year first recorded||2001||1883||1883||2001||1883|
|Year last recorded||2014||2014||2014||2014||2010|
|Number of records||33||27||59||41||19|
|Number of individuals||92||5||185||2||0|
For the county, we have a total of 179 records from 160 sites. First recorded in 1883.
Most records are of leaf-mines.
Sutton & Beaumont, 1989: Recorded from all five vice-counties but rather local and seldom common.
2013 (CHF): Mines are locally common in blackthorn in the centre and east of the county. The mine is very distinctive and unlikely to be confused with any other species. The initial gallery is slender with an uninterrupted frass line leaving clear edges. This then abruptly widens into a round blotch with the frass concentrated in a central spot. The mine hardly ever crosses the midrib.