General comments:
Widespread and common.

A recent arrival in our area, with the first known record at Horsenden Hill in 2003. It spread from this Middlesex base and was first found in Hertfordshire at Bishops Stortford in 2006. By about 2013 it was a widespread and common resident across both counties.

Recorded in 30 (73%) of 41 10k Squares. First Recorded in 2003. Last Recorded in 2024. Additional Stats

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