Juniper Carpet

Thera juniperata

The juniper carpet is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is found throughout Europe and the Near East, but is rather uncommon and locally distributed, mainly due to its very specific larval food plant. Source

Where it is now

In the last 8 weeks this insect was recorded 183 times across 10 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 56°N in October to 65°N in September, about 1,000 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.