Acleris nivisellana
In 3 days ~10% in a week ~20%
Acleris nivisellana, the snowy-shouldered acleris moth, is a species of moth of the family Tortricidae. It is found in North America, where it has been recorded from southern Canada and the northern United States, south in the east to Maryland and Virginia, and south in the west to California.
The wingspan is 15–17 mm. Adults have been recorded on wing from March to November, probably in two generations per year. The larvae feed on Crataegus, Malus (including Malus pumila), Physocarpus malvaceus, Prunus pensylvanica, Sorbus (including Sorbus scopulina) species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Snowy-Shouldered Acleris Moth sighting in Toronto on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 597th most-seen of the 1689 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Snowy-Shouldered Acleris Moth in Toronto on a given day, so our monthly data shows no clear season.
Only Toronto, in our data
Toronto is the only city on Wallace's Line with enough records to rate Snowy-Shouldered Acleris Moth sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Snowy-Shouldered Acleris Moth is recorded against all the insects logged in Toronto (24 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.
