Romualdius scaber
In 3 days ~10%
Romualdius scaber, known generally as the crusted root weevil or crusted grass weevil, is a species of broad-nosed weevil in the beetle family Curculionidae. It is found in Europe and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Calgary | 🇨🇦 Canada | |
| 2 | Seattle | 🇺🇸 United States | |
| 3 | Saint Petersburg | 🇷🇺 Russia | |
| 4 | Vancouver | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Crusted Root Weevil sighting in Vancouver on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 439th most-seen of the 482 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 Crusted Root Weevil in Vancouver on a given day, so our monthly data shows no clear season.
Among the best
Of the 4 cities where we can rate Crusted Root Weevil sightings, Vancouver ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Calgary (Canada, under 5%), Seattle (United States, under 5%) and Saint Petersburg (Russia, under 5%).
Same family: Curculionidae
The closest relatives of the Crusted Root Weevil that you can see in Vancouver (family Curculionidae, True Weevils) are Black Vine Weevil (about 10%) and Strawberry Blossom Weevil (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Crusted Root Weevil is recorded against all the insects logged in Vancouver (5 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.
