Plagiodera californica
In 3 days ~10% in a week ~20%
Plagiodera californica is a species of leaf beetle in the family Chrysomelidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a California Willow Leaf Beetle sighting in San Francisco on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 326th most-seen of the 737 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 California Willow Leaf Beetle in San Francisco on a given day, so our monthly data shows no clear season.
Only San Francisco, in our data
San Francisco is the only city on Wallace's Line with enough records to rate California Willow Leaf Beetle sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Chrysomelidae
The closest relatives of the California Willow Leaf Beetle that you can see in San Francisco (family Chrysomelidae, Leaf Beetles) are Spotted Cucumber Beetle (about 10%), Bronze Beetle (about 10%) and Australian Tortoise Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the California Willow Leaf Beetle is recorded against all the insects logged in San Francisco (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.
