Choristoneura rosaceana
In 3 days ~10% in a week ~30%
Choristoneura rosaceana, the oblique banded leaf roller or rosaceous leaf roller, is a moth of the family Tortricidae. It is native to North America, but has been accidentally introduced into other parts of the world. The wingspan is about 25 mm. The forewing length is 7.5–11 mm for males and 11.5–14 mm for females. Adults are on wing from June to July and again from August to September in most of its range. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Chicago | 🇺🇸 United States | |
| 4 | Edmonton | 🇨🇦 Canada | |
| 5 | Dallas | 🇺🇸 United States | |
| 6 | Washington | 🇺🇸 United States | |
| 7 | Toronto | 🇨🇦 Canada | |
| 8 | Philadelphia | 🇺🇸 United States | |
| 9 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 10 | Austin | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Oblique-Banded Leafroller Moth sighting in Montreal on a given day, based on 64 verified sightings from GBIF citizen-science data. It is the 163rd 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 30%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report an Oblique-Banded Leafroller Moth in Montreal on a given day, against under 5% in September to May, the lowest months.
Yes
Of the 13 cities where we can rate Oblique-Banded Leafroller Moth sightings, Montreal has the highest daily chance: about 10%. Next come Baltimore (United States, about 10%) and Chicago (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Oblique-Banded Leafroller Moth is recorded against all the insects logged in Montreal (64 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.
