General comments:
Ubiquitous.

There has been a shift in the timing of the single generation of adults, from mid-May to the end of July in the past to about early June to the very end of August, varying between years with the advancement or otherwise of the season.

Recorded in 38 (93%) of 41 10k Squares. First Recorded in 1887. Last Recorded in 2024. Additional Stats

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