Cosmia calami
In 3 days ~10% in a week ~20%
Cosmia calami, the American dun-bar moth, is a moth in the family Noctuidae. It is found in North America, including California, Georgia, Massachusetts, Minnesota, New Hampshire, New Jersey, Oregon, Pennsylvania, Tennessee, Washington and Wisconsin.
The wingspan is about 32 mm (1.3 in). The larvae are carnivorous and feed on geometrid caterpillars that feed on Quercus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Dallas | 🇺🇸 United States | |
| 4 | Toronto | 🇨🇦 Canada | |
| 5 | San Francisco | 🇺🇸 United States | |
| 6 | Chicago | 🇺🇸 United States | |
| 7 | Washington | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an American Dun-Bar Moth sighting in Boston on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 612th most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report an American Dun-Bar Moth in Boston on a given day, against under 5% in August to June, the lowest months.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most American Dun-Bar Moth 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 American Dun-Bar Moth sightings, Boston ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Austin (United States, under 5%).
Same family: Noctuidae
The closest relatives of the American Dun-Bar Moth that you can see in Boston (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 10%), Armyworm Moth (about 10%) and American Copper Underwing (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the American Dun-Bar Moth is recorded against all the insects logged in Boston (14 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.
