Season (Adult / Immature):
National Status: Local
Local Status: Scarce and local resident.
Local Record: Grade 3 See here for explanation
Flight time: One generation, May-Jul.
Foodplant: Common Reed.
|Year first recorded||1929||1991||1962||1988||2014|
|Year last recorded||2014||2014||2014||2014||2014|
|Number of records||165||9||40||20||1|
|Number of individuals||173||15||122||24||1|
For the county, we have a total of 235 records from 60 sites. First recorded in 1929.
Sutton & Beaumont, 1989: Very local in reed-beds. Until 1970 there were only two known localities for this species, Skipwith Common (VC61) and Thorne Moors (VC63). In the last few years it has been recorded from many new sites. However, it has been suggested (PQW pers. comm.) that people have been searching in more inaccessible areas (in terms of light trapping) and finding already established colonies rather than the species actually spreading.
2012 (CHF): There have been several more sites for this species and it does genuinely appear to have altered its distribution in the county. Records are now very rare in VC63 whereas it has spread in other areas as far north as Teesside - the most northerly site in the country. Numbers in VC61 have increased considerably and since 2006 it has appeared at three sites in the Ripon area. In the last two years numbers of records have shot up to 15 in 2010 and 29 in 2011.