Chrysolina americana
In 3 days ~20% in a week ~50%
Chrysolina americana, common name rosemary beetle, is a species of beetle belonging to the family Chrysomelidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monfragüe National Park | 🇪🇸 Spain | |
| 2 | Doñana National Park | 🇪🇸 Spain | |
| 3 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 4 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Manchester | 🇬🇧 United Kingdom | |
| 3 | London | 🇬🇧 United Kingdom | |
| 4 | Naples | 🇮🇹 Italy | |
| 5 | Leeds | 🇬🇧 United Kingdom | |
| 6 | Athens | 🇬🇷 Greece | |
| 7 | Birmingham | 🇬🇧 United Kingdom | |
| 8 | Paris | 🇫🇷 France | |
| 9 | Brussels | 🇧🇪 Belgium | |
| 10 | Lyon | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Rosemary Beetle sighting in Cologne on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 54th most-seen of the 235 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
June and October
In those months about 20% of wildlife watchers report a Rosemary Beetle in Cologne on a given day, against under 5% in August and November–March, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Rosemary Beetle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
14th of 25
Of the 25 cities where we can rate Rosemary Beetle sightings, Cologne ranks 14th at about 10%. The best odds are in Liverpool (United Kingdom, about 20%), Manchester (United Kingdom, about 20%) and London (United Kingdom, about 20%).
Same family: Chrysomelidae
The closest relatives of the Rosemary Beetle that you can see in Cologne (family Chrysomelidae, Leaf Beetles) are Spotted Willow Leaf Beetle (about 10%) and Alder Leaf Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rosemary Beetle is recorded against all the insects logged in Cologne (19 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.
