Eumenes crucifera
In 3 days ~10% in a week ~20%
Eumenes crucifera, also known as the cross potter wasp, is a North American species of potter wasp found in Canada, the United States, and Mexico. E. crucifera has a "range of variation mainly in coloration". In part due to this phenotypic variation, there were previously four recognized subspecies, one of which (Eumenes flavitinctus) has been elevated to full species status, and three of which have been eliminated and upmerged back into E. crucifera as of 2018. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vancouver | 🇨🇦 Canada | |
| 2 | San Diego | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Cross Potter Wasp sighting in San Francisco on a given day, based on 26 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 Cross Potter Wasp in San Francisco on a given day, so our monthly data shows no clear season.
Among the best
Of the 4 cities where we can rate Cross Potter Wasp sightings, San Francisco ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Vancouver (Canada, under 5%) and San Diego (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Cross Potter Wasp is recorded against all the insects logged in San Francisco (26 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.
