Promachus painteri
In 3 days ~20% in a week ~30%
Promachus painteri is a species of robber flies (insects in the family Asilidae). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | San Antonio | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Black Lion Fly sighting in Cumbres de Monterrey National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 163rd most-seen of the 431 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June–August and October
In those months about 10% of wildlife watchers report a Black Lion Fly in Cumbres de Monterrey National Park on a given day, against under 5% in September and November–May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Black Lion Fly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Cumbres de Monterrey National Park, in our data
Cumbres de Monterrey National Park is the only park on Wallace's Line with enough records to rate Black Lion Fly sightings: about 10% of wildlife watchers there report one on a given day.
Same order: Diptera
The closest relatives of the Black Lion Fly that you can see in Cumbres de Monterrey National Park (order Diptera, Flies) are Black Soldier Fly (about 10%) and Maize Calligrapher (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black Lion Fly is recorded against all the insects logged in Cumbres de Monterrey National Park (15 verified sightings from 2019 to 2026), 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.
