Strophosoma melanogrammum
In 3 days ~10% in a week ~30%
Strophosoma melanogrammum is a species of weevil that is native to the European Continent, but has been introduced into North America as well. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hamburg | 🇩🇪 Germany | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Stockholm | 🇸🇪 Sweden | |
| 4 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 5 | Vancouver | 🇨🇦 Canada | |
| 6 | Berlin | 🇩🇪 Germany | |
| 7 | Birmingham | 🇬🇧 United Kingdom | |
| 8 | Seattle | 🇺🇸 United States | |
| 9 | Boston | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Nut Leaf Weevil sighting in Stockholm on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 123rd most-seen of the 202 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.
May and July–August
In those months about 10% of wildlife watchers report a Nut Leaf Weevil in Stockholm on a given day, against under 5% in June and September–April, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Nut Leaf Weevil sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Among the best
Of the 9 cities where we can rate Nut Leaf Weevil sightings, Stockholm ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Hamburg (Germany, about 10%) and London (United Kingdom, about 10%).
Same family: Curculionidae
The closest relatives of the Nut Leaf Weevil that you can see in Stockholm (family Curculionidae, True Weevils) are Black Vine Weevil (about 10%), Strawberry Blossom Weevil (about 10%) and Strawberry Root Weevil (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Nut Leaf Weevil is recorded against all the insects logged in Stockholm (8 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.
