Balsa tristrigella
In 3 days ~10%
The three-lined balsa moth (Balsa tristrigella) is a species of moth of the family Noctuidae. It is found in eastern North America. The wingspan is 25–30 mm (0.98–1.18 in). They are on wing from May to August. The larvae feed on Crataegus 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 Three-Lined Balsa Moth sighting in Toronto on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 1212th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Three-Lined Balsa 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 Three-Lined Balsa Moth sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Noctuidae
The closest relatives of the Three-Lined Balsa Moth that you can see in Toronto (family Noctuidae, Cutworm Moths and Allies) are American Dagger (about 10%), Large Yellow Underwing (about 10%) and Armyworm Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Three-Lined Balsa Moth is recorded against all the insects logged in Toronto (8 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.
