Halloween Pennant

Celithemis eponina

Halloween Pennant (Celithemis eponina)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

The Halloween pennant is a species of dragonfly in the family Libellulidae. It is native to eastern North America, as well as the West Indies. Source

Where it is now

In the last 8 weeks this insect was recorded 3 times across 1 area (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 North America ranged from 34°N in June to 42°N in July, 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.

RegionFirst arrivalLast arrivalTypical peakAreas
North America8 June 202629 June 202613 July 20263

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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.