Scarce Black Arches

Nola aerugula

Nola aerugula, the scarce black arches, is a moth of the family Nolidae found in Asia and Europe. The species was first described by the German entomologist, Jacob Hübner in 1793. Source

Where it is now

In the last 8 weeks this insect was recorded 3 times across 1 area (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.