Polydrusus formosus
In 3 days ~30% in a week ~50%
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 |
With luck
About 10% of wildlife watchers report a Green Immigrant Leaf Weevil sighting in Hamburg on a given day, based on 45 verified sightings from GBIF citizen-science data. It is the 58th most-seen of the 423 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
May and June
In those months about 20% of wildlife watchers report a Green Immigrant Leaf Weevil in Hamburg on a given day, against under 5% in August to April, 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.
6th of 35
Of the 35 cities where we can rate Green Immigrant Leaf Weevil sightings, Hamburg ranks 6th at about 10%. The best odds are in London (United Kingdom, about 20%), Liverpool (United Kingdom, about 10%) and Rotterdam [The Hague] (Netherlands, about 10%).
GBIF citizen-science records
It is estimated from how often the Green Immigrant Leaf Weevil is recorded against all the insects logged in Hamburg (45 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.
