Petrophila canadensis
In 3 days ~10% 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 |
Rare
Under 5% of wildlife watchers report a Canadian Petrophila sighting in Great Smoky Mountains National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 513th most-seen of the 822 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May and August–September
In those months about 10% of wildlife watchers report a Canadian Petrophila in Great Smoky Mountains National Park on a given day, against under 5% in June–July and October–April, 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 Great Smoky Mountains National Park, in our data
Great Smoky Mountains National Park is the only park on Wallace's Line with enough records to rate Canadian Petrophila sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Crambidae
The closest relatives of the Canadian Petrophila that you can see in Great Smoky Mountains National Park (family Crambidae, Crambid Snout Moths) are Basswood Leafroller Moth (about 10%), Hollow-Spotted Blepharomastix Moth (about 10%) and Elegant Grass-Veneer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Canadian Petrophila is recorded against all the insects logged in Great Smoky Mountains National Park (8 verified sightings from 2019 to 2026), 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.
