Megathymus yuccae
In 3 days ~20% in a week ~30%
Megathymus yuccae, the yucca giant-skipper, is a rare early season butterfly that is widespread across the southern United States. It belongs in the family Hesperiidae, subfamily Megathyminae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Joshua Tree National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Yucca Giant-Skipper sighting in Joshua Tree National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 117th most-seen of the 190 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.
April
In that month about 20% of wildlife watchers report a Yucca Giant-Skipper in Joshua Tree National Park on a given day, against under 5% in May to March, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Yucca Giant-Skipper sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Joshua Tree National Park, in our data
Joshua Tree National Park is the only park on Wallace's Line with enough records to rate Yucca Giant-Skipper sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Hesperiidae
The closest relatives of the Yucca Giant-Skipper that you can see in Joshua Tree National Park (family Hesperiidae, Skippers) are White Checkered-Skipper (about 20%), Funereal Duskywing (about 20%) and Northern White-Skipper (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yucca Giant-Skipper is recorded against all the insects logged in Joshua Tree National Park (10 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.
