Birch Mocha

Cyclophora albipunctata

Cyclophora albipunctata, the birch mocha, is a moth of the family Geometridae. The species was first described by Johann Siegfried Hufnagel in 1767. It is found in the Palearctic. The southern boundary runs westward along the French Atlantic coast and to the British Isles and north of the Alps. In the east, the species ranges to the Pacific Ocean. South of the northern Alps line, it is found at some high elevation areas and mountains. In the Pyrenees, the Massif Central, the southern Alps, the northern Dinaric Alps, in the western and northern Carpathians, in northern Turkey and the Caucasus. In the north, the range extends up to the Arctic Circle. In the Far East the nominate subspecies is replaced by Cyclophora albipunctata griseolata Staudinger, 1897. Source

Where it is now

In the last 8 weeks this insect was recorded 18 times across 4 areas (each area is a 5 degree square).

See the Birch Mocha on the live map

Movement and weather

Over the weeks it was present in the past year, its centre in Europe ranged from 55°N in August to 66°N in June, about 1,200 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.