Straw Dot

Rivula sericealis

Rivula sericealis, the straw dot, is a moth of the family Erebidae. The species was first described by Giovanni Antonio Scopoli in his 1763 Entomologia Carniolica. It is found in Europe including the Iberian Peninsula and southern Fennoscandia and south to North Africa. In an easterly direction, the species occurs across the Palearctic to the Pacific Ocean and Japan. The species closely resembles Evergestis forficalis. Source

Where it is now

In the last 8 weeks this insect was recorded 349 times across 12 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 50°N in May to 62°N in June, 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.