Season (Adult / Immature):
National Status: Common
Local Status: Common and thinly distributed or restricted resident.
Local Record: Grade 3 adult, 2 leaf-mine See here for explanation
Foodplant: Hawthorn and Apple.
|Year first recorded||1953||2005||1987||2001||2001|
|Year last recorded||2014||2014||2014||2014||2012|
|Number of records||25||13||70||57||21|
|Number of individuals||44||0||63||0||0|
For the county, we have a total of 186 records from 163 sites. First recorded in 1953.
Most records are of leaf-mines.
Sutton & Beaumont, 1989: Old records are unreliable due to confusion with S. crataegella (Klimesch), however it appears to be widespread with reliable records from all five vice-counties.
2013 (CHF): Stigmella species mining hawthorn can be tricky and a firm identification cannot be achieved in every case. This species is most commonly mistaken for Stigmella crataegella which however mines much earlier in the year. Tenanted mines should not prove to be a problem as the bright green larva and pronounced coiling of the frass is characteristic. The mine is a long corridor that widens slightly, winding freely through the leaf and is not influenced by the venation. The brown frass is linear at first but quickly becomes coiled. Mines are tenanted in September and October. This species is commonest on hawthorn but is also seen on apple and to a lesser extent on pear, cotoneaster and other related plants. The main confusion species, Stigmella crataegella, has tenanted mines in June and July and the loops of coiled frass make more tight hairpin turms, often forming a secondary blotch.
This species is common across all of the county.