Cassida piperata
In 3 days ~10% in a week ~20%
Cassida piperata is a species of beetle in the leaf beetle family. It is native to eastern Asia, but it has also been reported from the United States as an alien species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Beijing | 🇨🇳 China | |
| 2 | Philadelphia | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | New York City | 🇺🇸 United States | |
| 6 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Small Tortoise Beetle sighting in Philadelphia on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 557th most-seen of the 632 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Small Tortoise Beetle in Philadelphia on a given day, so our monthly data shows no clear season.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Small Tortoise Beetle sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
2nd of 6
Of the 6 cities where we can rate Small Tortoise Beetle sightings, Philadelphia ranks 2nd at under 5%. The best odds are in Beijing (China, about 10%).
Same family: Chrysomelidae
The closest relatives of the Small Tortoise Beetle that you can see in Philadelphia (family Chrysomelidae, Leaf Beetles) are Spotted Cucumber Beetle (about 10%), Dogbane Leaf Beetle (about 10%) and Pigweed Flea Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Small Tortoise Beetle is recorded against all the insects logged in Philadelphia (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.
