Raphia frater
In 3 days ~20% in a week ~40%
Raphia frater, the brother moth or simply the brother, is a moth of the family Noctuidae. It is found from Nova Scotia west, across the forested regions of Canada to British Columbia, south to Mississippi in the east. The southern limits in the west are uncertain due to confusion with several closely related species or forms.
The wingspan is 38–44 mm. Adults are on wing from April or May to August. There is one or two generations per year. The larvae mainly feed on aspen, but have also been recorded from alder, birch, cottonwood, and willow. Raphia frater frater (Prairie Provinces, in the east south of the Great Lakes region into Pennsylvania, Ohio and Indiana; In the West, it occurs south along mid-elevation mountain ranges of the Pacific Northwest into Washington, and southward along the Rocky Mountains. Specimens from high elevations in Colorado and New Mexico) Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Point Pelee National Park | 🇨🇦 Canada |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Brother Moth sighting in Point Pelee National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 167th most-seen of the 196 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Brother Moth in Point Pelee National Park on a given day, against under 5% in August to May, the lowest months.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Brother Moth sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Point Pelee National Park, in our data
Point Pelee National Park is the only park on Wallace's Line with enough records to rate Brother Moth sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Noctuidae
The closest relatives of the Brother Moth that you can see in Point Pelee National Park (family Noctuidae, Cutworm Moths and Allies) are Eight-Spotted Forester Moth (about 20%), Smeared Dagger (about 20%) and Pearly Wood-Nymph (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brother Moth is recorded against all the insects logged in Point Pelee National Park (6 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.
