Garden Carpet

Xanthorhoe fluctuata

The garden carpet is a moth of the family Geometridae. It is an abundant and familiar species across its huge range which covers the whole Palearctic region from Ireland to Japan and including the Near East and North Africa. It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. Source

Where it is now

In the last 8 weeks this insect was recorded 202 times across 9 areas (each area is a 5 degree square).

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Movement and weather

Each season it is first heard regularly where daytime highs are around 15°C (typically 9 to 15°C, from 6 areas).

Over the weeks it was present in the past year, its centre in Europe ranged from 38°N in October to 62°N in July, about 2,700 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.