Trirhabda canadensis
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Goldenrod Leaf Beetle sighting in Montreal on a given day, based on 21 verified sightings from GBIF citizen-science data. It is the 349th 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.
July and December
In those months about 10% of wildlife watchers report a Goldenrod Leaf Beetle in Montreal on a given day, against under 5% in January–June and August–November, the lowest months.
4th of 5
Of the 5 cities where we can rate Goldenrod Leaf Beetle sightings, Montreal ranks 4th at under 5%. The best odds are in Toronto (Canada, about 10%), Minneapolis [Saint Paul] (United States, under 5%) and Chicago (United States, under 5%).
Same family: Chrysomelidae
The closest relatives of the Goldenrod Leaf Beetle that you can see in Montreal (family Chrysomelidae, Leaf Beetles) are Swamp Milkweed Leaf Beetle (about 10%), Striped Cucumber Beetle (about 10%) and Spotted Cucumber Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Goldenrod Leaf Beetle is recorded against all the insects logged in Montreal (21 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.
