Ceroxys latiusculus
In 3 days ~10%
Ceroxys latiusculus, the narrow-banded picture-winged fly, is a species of fly in the genus Ceroxys of the family Ulidiidae. Adults are 9-12 mm in length. The abdomen is black with gray bands and the wings have distinctive markings. Larvae feed on Senecio. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Salt Lake City | 🇺🇸 United States | |
| 2 | Sacramento | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Narrow-Banded Picture-Winged Fly sighting in San Francisco on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 404th 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 Narrow-Banded Picture-Winged Fly in San Francisco on a given day, so our monthly data shows no clear season.
3rd of 4
Of the 4 cities where we can rate Narrow-Banded Picture-Winged Fly sightings, San Francisco ranks 3rd at under 5%. The best odds are in Salt Lake City (United States, about 10%) and Sacramento (United States, under 5%).
Same order: Diptera
The closest relatives of the Narrow-Banded Picture-Winged Fly that you can see in San Francisco (order Diptera, Flies) are Oblique Streaktail (about 10%), Eurasian Drone Fly (about 10%) and Coyote Brush Bud Gall Midge (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Narrow-Banded Picture-Winged Fly is recorded against all the insects logged in San Francisco (17 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.
