Trirhabda canadensis
In 3 days ~10% in a week ~30%
Trirhabda canadensis, the goldenrod leaf beetle, is a species of leaf beetle in the family Chrysomelidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 3 | Chicago | 🇺🇸 United States | |
| 4 | Montreal | 🇨🇦 Canada | |
| 5 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Goldenrod Leaf Beetle sighting in Toronto on a given day, based on 130 verified sightings from GBIF citizen-science data. It is the 181st 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 30%, if each day is a fresh chance.
July and August
In those months about 10% of wildlife watchers report a Goldenrod Leaf Beetle in Toronto on a given day, against under 5% in September to June, the lowest months.
Yes
Of the 5 cities where we can rate Goldenrod Leaf Beetle sightings, Toronto has the highest daily chance: about 10%. Next come Minneapolis [Saint Paul] (United States, under 5%) and Chicago (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Goldenrod Leaf Beetle is recorded against all the insects logged in Toronto (130 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.
