Promachus rufipes
In 3 days ~40% in a week ~60%
Promachus rufipes, known generally as the red-footed cannibalfly or bee panther, is a species of robber fly (insects in the family Asilidae). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Congaree National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Eastern Lion Fly sighting in Shenandoah National Park on a given day, based on 55 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 76th most-seen of the 723 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 60%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report an Eastern Lion Fly in Shenandoah National Park on a given day, against under 5% in November to June, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Eastern 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.
2nd of 3
Of the 3 parks where we can rate Eastern Lion Fly sightings, Shenandoah National Park ranks 2nd at about 10%. The best odds are in Congaree National Park (United States, about 20%).
Same family: Asilidae
The closest relatives of the Eastern Lion Fly that you can see in Shenandoah National Park (family Asilidae, Robber Flies) are Ringed Pixie (about 10%), Eastern Yellow-Backed Laphria (about 10%) and Black-Waisted Laphria (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eastern Lion Fly is recorded against all the insects logged in Shenandoah National Park (55 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.
