Pheosia rimosa
In 3 days ~10% in a week ~30%
Pheosia rimosa, the black-rimmed prominent moth, fissured prominent or false-sphinx, is a moth of the family Notodontidae. The species was first described by Alpheus Spring Packard in 1864. It is found from coast to coast in North America, although it is less common in the south-eastern United States.
The wingspan is 43–62 mm. Adults are on wing from spring to fall. The larvae feed on the leaves of Populus and Salix species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Jasper National Park | 🇨🇦 Canada | |
| 2 | Great Bear Rainforest | 🇨🇦 Canada | |
| 3 | Acadia National Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black-Rimmed Prominent sighting in Great Bear Rainforest on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 178th most-seen of the 235 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.
June to August
In those months about 10% of wildlife watchers report a Black-Rimmed Prominent in Great Bear Rainforest on a given day, against under 5% in September to May, the lowest months. Those are among Great Bear Rainforest's driest months, with about 150 mm of rain a month against 480 mm in November.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Black-Rimmed Prominent sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 3
Of the 3 parks where we can rate Black-Rimmed Prominent sightings, Great Bear Rainforest ranks 2nd at under 5%. The best odds are in Jasper National Park (Canada, about 10%).
GBIF citizen-science records
It is estimated from how often the Black-Rimmed Prominent is recorded against all the insects logged in Great Bear Rainforest (9 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.
