Sutton & Beaumont, 1989: In the fifty years preceding the publication of the last list (YNU, 1970) this species was only recorded once in the County. It has since been recorded several times and still seems to be increasing its range in Yorkshire. So far, however, there are only two sites where repeated records suggest it may be established.
Beaumont, 2002: This moth has occurred commonly in the south of VC63 during the past six or seven years but remains infrequent elsewhere.
2012 (CHF): This was a rare moth in the county until 1996 when it started to gradually become more common and spread out from its strongholds in the south of VC63 and from the western fringes. It can now be encountered all across the county. Similar expansion has been noted into other parts of eastern England. The biggest concentrations still occur in VC63 and 64.
Recorded in 129 (65%) of 200 10k Squares. First Recorded in 1960. Last Recorded in 2022. Additional Stats