Polydrusus formosus
In 3 days ~70% in a week ~90%
Polydrusus formosus, commonly known as the green immigrant leaf weevil, is a species of broad-nosed weevil belonging to the family Curculionidae, subfamily Entiminae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gros Morne National Park | 🇨🇦 Canada | |
| 2 | Isle Royale National Park | 🇺🇸 United States | |
| 3 | Voyageurs National Park | 🇺🇸 United States | |
| 4 | Elk Island National Park | 🇨🇦 Canada | |
| 5 | Riding Mountain National Park | 🇨🇦 Canada | |
| 6 | Cape Breton Highlands National Park | 🇨🇦 Canada | |
| 7 | Acadia National Park | 🇺🇸 United States | |
| 8 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 9 | Wadden Sea National Park | 🇩🇪 Germany | |
| 10 | Point Pelee National Park | 🇨🇦 Canada | |
| 11 | Shenandoah National Park | 🇺🇸 United States | |
| 12 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Liverpool | 🇬🇧 United Kingdom | |
| 3 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 4 | Manchester | 🇬🇧 United Kingdom | |
| 5 | Amsterdam | 🇳🇱 Netherlands | |
| 6 | Hamburg | 🇩🇪 Germany | |
| 7 | Turin | 🇮🇹 Italy | |
| 8 | Copenhagen | 🇩🇰 Denmark | |
| 9 | Essen | 🇩🇪 Germany | |
| 10 | Paris | 🇫🇷 France |
Possible
About 30% of wildlife watchers report a Green Immigrant Leaf Weevil sighting in Gros Morne National Park on a given day, based on 44 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 83 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
July
In that month about 50% of wildlife watchers report a Green Immigrant Leaf Weevil in Gros Morne National Park on a given day, against under 5% in April–May and September–November, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Green Immigrant Leaf Weevil sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 12 parks where we can rate Green Immigrant Leaf Weevil sightings, Gros Morne National Park has the highest daily chance: about 30%. Next come Isle Royale National Park (United States, about 30%) and Voyageurs National Park (United States, about 20%).
Same order: Coleoptera
The closest relatives of the Green Immigrant Leaf Weevil that you can see in Gros Morne National Park (order Coleoptera, Beetles) are Boreal Long-Lipped Tiger Beetle (about 20%), Say's Burying Beetle (about 10%) and Red-Lined Carrion Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Green Immigrant Leaf Weevil is recorded against all the insects logged in Gros Morne National Park (44 verified sightings from 2019 to 2026), 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.
