Claassenia sabulosa
Silhouette: Prespa Research Group · PhyloPic
In 3 days ~10% in a week ~20%
Claassenia sabulosa, the short-wing stone, is a species of common stonefly in the family Perlidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Glacier National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Calgary | 🇨🇦 Canada |
No species of the same family or order lives in Calgary, so these are its closest relatives here: other insects.
Rare
Under 5% of wildlife watchers report a Shortwing Stonefly sighting in Calgary on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 144th most-seen of the 256 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a Shortwing Stonefly in Calgary on a given day, against under 5% in August to June, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Shortwing Stonefly sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Calgary, in our data
Calgary is the only city on Wallace's Line with enough records to rate Shortwing Stonefly sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Shortwing Stonefly is recorded against all the insects logged in Calgary (12 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.
