Smoky Wainscot

Mythimna impura

Mythimna impura, the smoky wainscot, is a moth of the family Noctuidae. The species was first described by Jacob Hübner in 1808. It is distributed throughout most of the Palearctic realm from Ireland in the west of Europe east to the Caucasus, Turkey, Syria, Kazakhstan, Russia, Siberia, Mongolia, then Japan. In Europe it is found from the Arctic Circle to Spain and Italy in the south, as well as in the northern regions of Greece. Source

Where it is now

In the last 8 weeks this insect was recorded 17 times across 2 areas (each area is a 5 degree square).

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Movement and weather

Each season it is first heard regularly where daytime highs are around 19°C (typically 15 to 21°C, from 7 areas).

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.