Chestnut

Conistra vaccinii

Conistra vaccinii, the chestnut, is a moth of the family Noctuidae. The species was first described by Carl Linnaeus in 1761. It is distributed throughout Europe, North Africa and east through the Palearctic to Siberia. Source

Where it is now

In the last 8 weeks this insect was recorded 126 times across 8 areas (each area is a 5 degree square).

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Movement and weather

Over the weeks it was present in the past year, its centre in Europe ranged from 48°N in February to 62°N in May, about 1,600 km apart.

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.