Potamyia flava
In 3 days ~10% in a week ~20%
Potamyia flava is a species of netspinning caddisfly in the family Hydropsychidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dallas | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada | |
| 3 | Austin | 🇺🇸 United States | |
| 4 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Yellow Net-Spinning Caddisfly sighting in Montreal on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 377th most-seen of the 926 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Yellow Net-Spinning Caddisfly in Montreal on a given day, so our monthly data shows no clear season.
2nd of 5
Of the 5 cities where we can rate Yellow Net-Spinning Caddisfly sightings, Montreal ranks 2nd at under 5%. The best odds are in Dallas (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Yellow Net-Spinning Caddisfly is recorded against all the insects logged in Montreal (19 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.
