Aspidoscelis inornatus
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~40% in a week ~60%
The little striped whiptail (Aspidoscelis inornatus) is a species of lizard found in the southwestern United States (in Arizona, New Mexico and Texas) and in northern Mexico (in Chihuahua, Coahuila, Durango, Zacatecas, San Luis Potosí, and Nuevo León). A significant amount of research was done on the species during the mid-1990s, with several new subspecies being added, many of which some sources consider to be distinct enough to warrant full species status, and the research is ongoing. It is called little to distinguish it from many other species known as striped whiptails and to indicate that it is the smallest of those species.
The little striped whiptail grows from 6.5 to 9.5 inches (17 to 24 cm) in length. It is typically black in color, with yellow or white striping from head to tail, and a light blue underside. It is slender bodied, with a blue colored tail approximately three times the body length. The blue coloration is much more pronounced on males than females. They are not always striped or blue: sometimes they are brown with darker patches to blend in with the sand or dirt.
Like most species of whiptail lizard, the little striped whiptail... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Little Striped Whiptail sighting in Big Bend National Park on a given day, based on 36 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 30th most-seen of the 48 reptiles 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 40% of wildlife watchers report a Little Striped Whiptail in Big Bend National Park on a given day, against under 5% in October and December–March, the lowest months. That is one of Big Bend National Park's wettest months, with about 45 mm of rain against 10 mm in April.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Little Striped Whiptail 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 Big Bend National Park, in our data
Big Bend National Park is the only park on Wallace's Line with enough records to rate Little Striped Whiptail sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Aspidoscelis
The closest relatives of the Little Striped Whiptail that you can see in Big Bend National Park (genus Aspidoscelis, Northern Whiptails) are Plateau Spotted Whiptail (about 40%), Marbled Whiptail (about 30%) and Diploid Checkered Whiptail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Little Striped Whiptail is recorded against all the reptiles logged in Big Bend National Park (36 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.
