Cenopis diluticostana
In 3 days ~10% in a week ~20%
Sparganothis diluticostana, the spring dead-leaf roller, is a species of moth of the family Tortricidae. It is found in North America from Quebec to Florida, west to Texas and Nebraska and north to Minnesota and Ontario.
The wingspan is 12–14 mm. Adults are on wing from April to August. The larvae feed on the leaves of Fraxinus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Montreal | 🇨🇦 Canada | |
| 4 | Chicago | 🇺🇸 United States | |
| 5 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Spring Dead-Leaf Roller Moth sighting in Montreal on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 364th most-seen of the 926 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.
June and July
In those months about 10% of wildlife watchers report a Spring Dead-Leaf Roller Moth in Montreal on a given day, against under 5% in August to May, the lowest months.
Among the best
Of the 5 cities where we can rate Spring Dead-Leaf Roller Moth sightings, Montreal ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Toronto (Canada, under 5%) and Boston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Spring Dead-Leaf Roller Moth is recorded against all the insects logged in Montreal (22 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.
