Thera variata

Thera variata, the spruce carpet, is a moth of the family Geometridae. It is found throughout Europe, North Asia and Japan. The common name spruce carpet is also used when referring to Thera britannica. Source

Where it is now

In the last 8 weeks this insect was recorded 78 times across 5 areas (each area is a 5 degree square).

See the Thera variata on the live map

Movement and weather

Over the weeks it was present in the past year, its centre in Europe ranged from 48°N in May to 62°N in August, 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.

Download every area as CSV

Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.