Black Darter

Sympetrum danae

Sympetrum danae, the black darter or black meadowhawk, is a dragonfly with a northern Holarctic distribution in northern Europe, northern Asia, and northern North America. It is a very active late summer insect typical of heathland and moorland bog pools. Source

Where it is now

In the last 8 weeks this insect was recorded 190 times across 19 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 53°N in July to 64°N in August, 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.