Cymraeg

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peppered moth

Biston betularia · gwyfyn brith · B&F number 1931

Recorded on 49 nights, in 18 of the twenty years, most often in Jul.

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49 records

67 moths

18 years of 20

2002-07-13 first

2020-07-11 last

Jul peak

Flight period (moths per trap-night)

By year (moths per trap-night)