Ophiogomphus severus
In 3 days ~20% in a week ~40%
Ophiogomphus severus is a species of dragonfly in the family Gomphidae. It is commonly known as the pale snaketail. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grand Teton National Park | 🇺🇸 United States | |
| 2 | Yellowstone National Park | 🇺🇸 United States | |
| 3 | Glacier National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Pale Snaketail sighting in Denver on a given day, based on 108 verified sightings from GBIF citizen-science data. It is the 63rd most-seen of the 461 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June to October
In those months about 10% of wildlife watchers report a Pale Snaketail in Denver on a given day, against under 5% in November to May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Pale Snaketail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 3 cities where we can rate Pale Snaketail sightings, Denver ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Calgary (Canada, about 10%) and Edmonton (Canada, about 10%).
Same order: Odonata
The closest relatives of the Pale Snaketail that you can see in Denver (order Odonata, Dragonflies and Damselflies) are Great Spreadwing (about 20%), Widow Skimmer (about 10%) and Variegated Meadowhawk (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pale Snaketail is recorded against all the insects logged in Denver (108 verified sightings), 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.
