Catocala amatrix
In 3 days ~20% in a week ~40%
Catocala amatrix, the sweetheart underwing, is a moth of the family Erebidae. The species can be found from Nova Scotia, south through Connecticut to Florida and west through Texas and Oklahoma to Arizona and north to Montana, Minnesota, and Ontario.
An exhibition model done by the Denton Brothers of Wellesley, Massachusetts was discovered in a consignment shop in Flagler Beach, Florida on September 12, 2013 by Brittany Durocher, a resident of that city. It was collected by the Denton Brothers in Virginia and named Catocala amatrix virginurus.
The wingspan is 75–95 mm. The moths flies from August to October depending on the location. The larvae feed on Populus deltoides, Populus grandidentata, Populus nigra, Populus tremuloides, and Salix nigra. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Point Pelee National Park | 🇨🇦 Canada |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | Detroit | 🇺🇸 United States | |
| 3 | Toronto | 🇨🇦 Canada | |
| 4 | Chicago | 🇺🇸 United States | |
| 5 | Denver | 🇺🇸 United States | |
| 6 | Boston | 🇺🇸 United States | |
| 7 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 8 | Austin | 🇺🇸 United States | |
| 9 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Sweetheart Underwing 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 142nd 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.
September
In that month about 20% of wildlife watchers report a Sweetheart Underwing in Point Pelee National Park on a given day, against under 5% in November to August, the lowest months.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Sweetheart Underwing 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 Sweetheart Underwing sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sweetheart Underwing 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.
