General comments:
Immigrant

Nineteenth century records are for Hitchin (Durrant, 1885); Haileybury (Bowyer, 1888), Cheshunt Marsh (Boyd, 1901) and Tring (Barraud, 1903) in Herts whilst Twickenham and Mill Hill are mentioned in a Middlesex list published in 1898. For the twentieth century, Foster (1937) lists Tring (undated), Watford (undated) and Berkhamsted (1921). Since then there are very few confirmed records.

	Retained Specimen / Photograph will be Required.

Recorded in 9 (22%) of 41 10k Squares. First Recorded in 1885. Last Recorded in 2018. Additional Stats

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