Calopteryx aequabilis
In 3 days ~10% in a week ~30%
Calopteryx aequabilis, the river jewelwing, is a species of broad-winged damselfly. The species was first described by Thomas Say in 1839. It is found from British Columbia to Newfoundland and southward to most of the northern part of the United States. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Riding Mountain National Park | 🇨🇦 Canada | |
| 2 | Yellowstone National Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a River Jewelwing sighting in Yellowstone National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 102nd most-seen of the 160 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
July and August
In those months about 10% of wildlife watchers report a River Jewelwing in Yellowstone National Park on a given day, against under 5% in September to June, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most River Jewelwing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate River Jewelwing sightings, Yellowstone National Park ranks 2nd at under 5%. The best odds are in Riding Mountain National Park (Canada, about 10%).
Same order: Odonata
The closest relatives of the River Jewelwing that you can see in Yellowstone National Park (order Odonata, Dragonflies and Damselflies) are Flame Skimmer (about 30%), Western Pondhawk (about 20%) and Common Whitetail (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the River Jewelwing is recorded against all the insects logged in Yellowstone National Park (12 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
