Ophraella communa
In 3 days ~20% in a week ~40%
Ophraella communa, common name ragweed leaf beetle, is a species of beetles belonging to the family Chrysomelidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Turin | 🇮🇹 Italy | |
| 2 | Bucharest | 🇷🇴 Romania | |
| 3 | Lyon | 🇫🇷 France | |
| 4 | Milan | 🇮🇹 Italy | |
| 5 | Budapest | 🇭🇺 Hungary | |
| 6 | Seoul | 🇰🇷 South Korea | |
| 7 | Tokyo | 🇯🇵 Japan | |
| 8 | Washington | 🇺🇸 United States | |
| 9 | Philadelphia | 🇺🇸 United States | |
| 10 | Dallas | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Ragweed Leaf Beetle sighting in Milan on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 104th most-seen of the 351 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Ragweed Leaf Beetle in Milan on a given day, against under 5% in November to June, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Ragweed Leaf Beetle sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 13 cities where we can rate Ragweed Leaf Beetle sightings, Milan ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Turin (Italy, about 10%), Bucharest (Romania, about 10%) and Lyon (France, about 10%).
Same family: Chrysomelidae
The closest relatives of the Ragweed Leaf Beetle that you can see in Milan (family Chrysomelidae, Leaf Beetles) are Rosemary Beetle (about 10%), Lachnaia italica (about 10%) and Poplar Leaf Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ragweed Leaf Beetle is recorded against all the insects logged in Milan (24 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.
