Eastern Pondhawk

Erythemis simplicicollis

Erythemis simplicicollis, the eastern pondhawk, also known as the common pondhawk, is a dragonfly of the family Libellulidae, native to the eastern two-thirds of the United States and southern Ontario and Quebec, Canada. It is a dragonfly of ponds and still waters. The species is distinguished in that the female is bright green with a banded abdomen and the mature male has a blue abdomen with a green face and green and blue thorax. Source

Where it is now

In the last 8 weeks this insect was recorded 110 times across 9 areas (each area is a 5 degree square).

See the Eastern Pondhawk on the live map

Movement and weather

Over the weeks it was present in the past year, its centre in North America ranged from 28°N in August to 39°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.

Download every area as CSV

Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.