Copestylum violaceum
In 3 days ~10% in a week ~20%
Copestylum violaceum, the purple bromeliad fly, is a species of syrphid fly in the family Syrphidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mexico City | 🇲🇽 México | |
| 2 | San Francisco | 🇺🇸 United States | |
| 3 | San Diego | 🇺🇸 United States | |
| 4 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Purple Bromeliad Fly sighting in San Francisco on a given day, based on 30 verified sightings from GBIF citizen-science data. It is the 283rd 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 Purple Bromeliad Fly 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 Purple Bromeliad Fly sightings, San Francisco ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Mexico City (México, under 5%).
GBIF citizen-science records
It is estimated from how often the Purple Bromeliad Fly is recorded against all the insects logged in San Francisco (30 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.
