Petrophila canadensis
In 3 days ~20% in a week ~30%
Petrophila canadensis, the Canadian petrophila moth, is a moth in the family Crambidae. It was described by Eugene G. Munroe in 1972. It is found in North America, where it has been recorded from southern Canada and the north-eastern United States.
Its wingspan is 11–18 mm. Adults are on wing from May to September in two generations per year. The larvae are aquatic and feed on diatoms, including Navicula and Cymbella species. They have also been recorded feeding on algae. The species overwinters as an adult. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Canadian Petrophila sighting in Montreal on a given day, based on 81 verified sightings from GBIF citizen-science data. It is the 133rd most-seen of the 926 insects we can rate there. Over three days the chance rises to about 20%, 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 Canadian Petrophila in Montreal on a given day, against under 5% in September to June, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Canadian Petrophila sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Montreal, in our data
Montreal is the only city on Wallace's Line with enough records to rate Canadian Petrophila sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Canadian Petrophila is recorded against all the insects logged in Montreal (81 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.
