Broad-Bordered Yellow Underwing

Noctua fimbriata

Noctua fimbriata, the broad-bordered yellow underwing, is a moth of the family Noctuidae. The species was first described in 1759 by Johann Christian Daniel von Schreber. Source

Where it is now

In the last 8 weeks this insect was recorded 303 times across 13 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 45°N in June to 58°N in August, about 1,300 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.