Cyclocephala pasadenae
In 3 days ~10%
Cyclocephala pasadenae, also known as the Pasadena masked chafer, is a species of rhinoceros beetle in the family Scarabaeidae. Native to southwestern North America, they and their cousins Cyclocephala hirta are locally abundant in the Los Angeles basin. These are tan or auburn colored beetles, about 13 mm long, with some patterning on their wing covers. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Los Angeles | 🇺🇸 United States | |
| 2 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Southwestern Masked Chafer sighting in San Francisco on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 430th most-seen of the 737 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Southwestern Masked Chafer in San Francisco on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Southwestern Masked Chafer sightings, San Francisco ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Los Angeles (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Southwestern Masked Chafer is recorded against all the insects logged in San Francisco (13 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.
