Clouded Border

Lomaspilis marginata

The clouded border 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 distributed across most of Europe to the Urals, western and central Siberia, Transbaikalia, Kazakhstan, Tian-Shan, northern Mongolia and parts of the Near East. Source

Where it is now

No records in the last 8 weeks. It may be out of season where the observers and sensors are.

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Movement and weather

Each season it is first heard regularly where daytime highs are around 16°C (typically 15 to 19°C, from 7 areas). That holds across 15° of latitude, which suggests its timing follows temperature more than the calendar.

Over the weeks it was present in the past year, its centre in Europe ranged from 49°N in May to 60°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.

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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.