What are the chances of seeing a White-Lined Sphinx in Big Bend National Park?
Possible
About 30% of wildlife watchers report a White-Lined Sphinx sighting in Big Bend National Park on a given day, based on 105 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 15th most-seen of the 329 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
When is the best time to see a White-Lined Sphinx in Big Bend National Park?
September
In that month about 60% of wildlife watchers report a White-Lined Sphinx in Big Bend National Park on a given day, against under 5% in December and January, the lowest months. That is one of Big Bend National Park's wettest months, with about 50 mm of rain against 10 mm in April.
What time of day is best to see a White-Lined Sphinx?
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most White-Lined Sphinx sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Big Bend National Park the best place to see a White-Lined Sphinx?
6th of 23
Of the 23 parks where we can rate White-Lined Sphinx sightings, Big Bend National Park ranks 6th at about 30%. The best odds are in Death Valley National Park (United States, about 80%), Joshua Tree National Park (United States, about 40%) and Bahía de Loreto National Park (Mexico, about 30%). All parks ranked.
Which relatives of the White-Lined Sphinx live in Big Bend National Park?
Same family: Sphingidae
The closest relatives of the White-Lined Sphinx that you can see in Big Bend National Park (family Sphingidae, Sphinx Moths) are Five-Spotted Hawk Moth (about 10%), Falcon Sphinx (about 10%) and Western Poplar Sphinx (about 10%), with each one's daily chance of a sighting.
Where does the White-Lined Sphinx sighting chance come from?
GBIF citizen-science records
It is estimated from how often the White-Lined Sphinx is recorded against all the insects logged in Big Bend National Park (105 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.