Pale November Moth

Epirrita christyi

The pale November moth is a moth of the family Geometridae. The species was first described by Allen in 1906. It is a fairly common species in Western Europe including the British Isles. Source

Where it is now

In the last 8 weeks this insect was recorded 47 times across 2 areas (each area is a 5 degree square).

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Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

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Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.