Ophraella communa
In 3 days ~30% in a week ~60%
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 Bucharest on a given day, based on 35 verified sightings from GBIF citizen-science data. It is the 38th most-seen of the 361 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July and August
In those months about 20% of wildlife watchers report a Ragweed Leaf Beetle in Bucharest on a given day, against under 5% in November to February, 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, Bucharest ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Turin (Italy, about 10%).
Same family: Chrysomelidae
The closest relatives of the Ragweed Leaf Beetle that you can see in Bucharest (family Chrysomelidae, Leaf Beetles) are Elm Leaf Beetle (about 10%), Knotweed Leaf Beetle (about 10%) and Gonioctena fornicata (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 Bucharest (35 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.
