Ophiogomphus severus
In 3 days ~20% in a week ~50%
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 Edmonton on a given day, based on 61 verified sightings from GBIF citizen-science data. It is the 42nd most-seen of the 390 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Pale Snaketail in Edmonton on a given day, against under 5% in October to May, the lowest months. That is one of Edmonton's wettest months, with about 95 mm of rain against 20 mm in February.
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, Edmonton ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Calgary (Canada, about 10%).
Same order: Odonata
The closest relatives of the Pale Snaketail that you can see in Edmonton (order Odonata, Dragonflies and Damselflies) are Black Meadowhawk (about 10%), Variable Darner (about 10%) and Four-Spotted Skimmer (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 Edmonton (61 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.
