Vagrant Darter

Sympetrum vulgatum

The vagrant darter, or moustached darter, is a European dragonfly. The species takes its English name from its habit of occasionally appearing as a rare vagrant north of its normal range. However, it is likely to be under-recorded because it is very similar to the common darter. Source

Where it is now

In the last 8 weeks this insect was recorded 160 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 53°N in November to 62°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.