Catocala amatrix
In 3 days ~10% in a week ~30%
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 |
Rare
Under 5% of wildlife watchers report a Sweetheart Underwing sighting in Detroit on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 236th most-seen of the 268 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.
August and September
In those months about 10% of wildlife watchers report a Sweetheart Underwing in Detroit on a given day, against under 5% in October to July, 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.
Among the best
Of the 9 cities where we can rate Sweetheart Underwing sightings, Detroit ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Montreal (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Sweetheart Underwing is recorded against all the insects logged in Detroit (5 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.
