8 Types of Lizards in Las Vegas You Can Spot in the Mojave Desert
October 26, 2026
The Mojave Desert wrapped around Las Vegas is the smallest of the three deserts that make up the larger North American Desert, but it more than makes up for its size with extremes. Of the three deserts that form the larger North American Desert, the Mojave is the smallest and also the driest, with temperatures above 100 degrees Fahrenheit common during summer and freezing temps and strong winds arriving in winter. That kind of climate has produced a surprising range of types of lizards in Las Vegas, each one built to handle blistering afternoons and near-freezing nights within the same 24-hour stretch.
Naturalists using the citizen-science platform iNaturalist have logged side-blotched lizards, zebra-tailed lizards, and western whiptails within the Red Rock Canyon National Conservation Area and around Henderson in recent seasons, proof that these reptiles are still active close to the city. The eight species below range from a plant-eating sand-dweller to the only venomous lizard native to the United States.
| Species | Typical Size | Venomous | Where to Look Near Las Vegas |
|---|---|---|---|
| Desert Iguana | Medium, pale body | No | Creosote flats, sand dunes |
| Collared Lizard | Medium-large, blocky head | No | Rocky outcrops, Red Rock Canyon |
| Zebra-Tailed Lizard | Small, banded tail | No | Open desert flats and washes |
| Common Side-Blotched Lizard | Small | No | Almost anywhere, trails to backyards |
| Desert Spiny Lizard | Medium, keeled scales | No | Rock piles, desert washes |
| Western Whiptail | Slender, long tail | No | Shrubs, bajadas, suburban edges |
| Banded Gila Monster | Large, stout | Yes | Rocky foothills, rarely seen |
| Western Red-Tailed Skink | Small, smooth scales | No | Kyle Canyon, Mount Charleston |
Pro Tip: Early morning through mid-morning in spring is the best window for spotting desert lizards, since these ectotherms need to warm up before they become fully active and start hunting or basking in the open.
1. Desert Iguana
The desert iguana (Dipsosaurus dorsalis) is one of the palest lizards in the Las Vegas Valley, with cream to light-gray scales that reflect sunlight rather than absorb it. That coloring lets the species stay active on hot sand at body temperatures that would send most other reptiles scrambling for shade.
Anyone hoping to spot a desert iguana in the wild needs to look near creosote bushes, since the species depends on them for food and shelter, eating the buds and flowers while also burrowing underneath for cover. That tight relationship with a single plant explains why desert iguana populations track creosote flats so closely across the valley floor.
Desert iguanas share their taste for tough desert vegetation with distant relatives like the Uromastyx lizards of North Africa and the Middle East, even though the two groups evolved their plant-based diets independently on opposite sides of the planet. The same creosote-flat habitat extends east into the Sonoran Desert, where types of lizards in Arizona overlap with desert iguana range and share its tolerance for extreme heat.
2. Collared Lizard
Also known as the Great Basin collared lizard or Mojave black collared lizard, Crotaphytus bicinctores is hard to mistake for anything else in the valley. It gets its name from the pair of black bands around its narrow neck and is often described as looking like a small dinosaur, with a distinctive long tail and a habit of basking conspicuously in the sun.
Collared lizards range from southeastern Oregon down to southern Arizona, but their widest distribution is found right here in Nevada. The Fossil Ridge area across State Route 159 from Red Rock Canyon’s 13-mile driving loop is considered one of the better places to see them, sharing the terrain with chuckwallas, horned lizards, and side-blotched lizards.
Hikers who scan boulder tops during the warmest part of the day have the best odds of watching a collared lizard rear up and sprint on its hind legs before diving for cover. Collared lizards range far beyond Nevada, and travelers exploring the Chihuahuan Desert will recognize close relatives among the types of lizards in Texas.
3. Zebra-Tailed Lizard
The zebra-tailed lizard (Callisaurus draconoides) earns its name from the bold black-and-white banding on the underside of its tail, which flips up and waves like a flag whenever the lizard feels threatened. After hiding for months during winter’s cooler temperatures, western zebra-tailed lizards return each spring to their business of skittering across the Mojave Desert floor.
They are among the fastest lizards in the valley, capable of short sprints across open sand that outrun most ground predators. Wildlife biologist Curtis Walker of the Bureau of Land Management’s Southern Nevada office has said “April is really the kickoff when temperatures are consistently above 75 degrees,” which lines up with when zebra-tailed lizard activity picks up noticeably around Las Vegas.
Zebra-tailed lizards also range across the open desert flats found among the types of lizards in California that share the Colorado and Mojave desert basins, where the same tail-flagging trick helps them dodge roadrunners and shrikes.
4. Common Side-Blotched Lizard
The common side-blotched lizard (Uta stansburiana) is probably the reptile most Las Vegas residents have already seen without realizing what it was. Side-blotched lizards are among the most frequently seen lizards in Nevada, abundant in deserts and semi-arid areas and fond of basking in the sun each morning to warm up before the day’s activity begins; in appearance, they resemble pocket-sized iguanas except for the telltale dark blotch behind the front leg that gives the species its name.
Males typically grow to about 2.4 inches from snout to vent, with females running smaller, and some males show off blue flecks on the tail and back along with yellow or orange highlights on the sides. Females wear duller stripes down the back, which makes telling the sexes apart fairly easy once a lizard holds still long enough for a close look.
Because side-blotched lizards tolerate human activity so well, they are often the first reptile curious homeowners research when they start looking into pet reptiles, even though wild-caught native lizards should always be left alone in their habitat rather than collected.
5. Desert Spiny Lizard
The desert spiny lizard (Sceloporus magister) was one of four species tracked during a habitat study at the Las Vegas Springs Preserve. Researchers documented the desert spiny lizard as one of four common Mojave Desert species at the preserve, alongside the western whiptail, common side-blotched lizard, and desert night lizard. Each of those species staked out slightly different territory within the site, which shows how particular desert spiny lizards can be about rock cover and sun exposure.
Adult males show off blue and violet patches on the throat and belly with blue or green tones along the sides and tail, while females and juveniles carry duller dark spots without that bright coloration. This robust, spiny-scaled lizard favors rock piles and woodpiles, where it can dash for cover the instant a hawk’s shadow crosses the ground.
6. Western Whiptail
The western whiptail (Aspidoscelis tigris, formerly classified as Cnemidophorus tigris) moves through desert shrubs with a nervous, jerky energy. This long, snakelike lizard bears more than a passing resemblance to a tiny alligator as it runs from bush to bush, though unlike an alligator it is a shy species that flees the moment a person or predator gets too close. An avid hunter, its diet consists mainly of spiders and insects, which it tracks down by flicking its tongue across the ground much like a snake.
Citizen-science observations logged through iNaturalist have placed western whiptails as close to the city as Pittman in Henderson, confirming that this species tolerates suburban edges better than many of its desert neighbors. Whiptails are a widespread family, and travelers exploring farther south will recognize similar species among the types of lizards in Mexico, where whiptail diversity runs even higher.
7. Banded Gila Monster
The banded Gila monster (Heloderma suspectum cinctum) is the one lizard on this list that demands real caution. This subspecies resides primarily in the Mojave Desert, ranging across extreme southwestern Utah, southern Nevada, southeastern California, and Arizona into Mexico. It is one of the only venomous lizards found anywhere in North America.
Adults measure anywhere from 9 to 20 inches long and live right in Red Rock Canyon, though spotting one is rare because Gila monsters spend an estimated 95 to 99 percent of their lives underground. When they do surface, it’s usually to hunt small mammals, bird eggs, or carrion during the cooler hours of morning or evening. They enter brumation, a reptile version of hibernation, from November through March, and are most often seen outside their burrows during the month of May.
Important Note: Gila monster bites are extremely painful, but there has never been a reported human death attributed to Gila monster venom. The species is still protected under Nevada law, so any lizard this large and slow-moving should be left alone and observed from a safe distance rather than approached or handled.
The Gila monster’s closest living relatives are the Mexican beaded lizards, the only other venomous lizard species on the planet and a reminder of how rare this evolutionary trait actually is among reptiles.
8. Western Red-Tailed Skink
The western red-tailed skink (Plestiodon gilberti rubricaudatus) is a subspecies of Gilbert’s skink that stands out from every other lizard on this list because of its smooth, glossy scales rather than the rough, keeled scales typical of desert species. Young western red-tailed skinks have a pink tail with no blue tint, and this is the only subspecies of Gilbert’s skink found outside California.
Kyle Canyon in the Mount Charleston area is one of the more reliable places to find western red-tailed skinks, alongside Great Basin fence lizards and northern sagebrush lizards. Unlike the desert-floor species on this list, skinks favor the cooler, wooded elevations above the Las Vegas Valley, where leaf litter and rotting logs hold onto enough moisture to keep them comfortable.
Skinks turn up across much of the country in one form or another, and readers curious about their eastern relatives can compare notes with the types of lizards in Georgia, where several skink species share the same smooth-scaled build.
From the sand dunes on the valley floor to the cool pines above Kyle Canyon, Las Vegas packs a remarkable range of habitats into a single metro area, and its lizards show that variety plainly. Anyone who spends time outdoors here, whether hiking Red Rock Canyon or just walking the dog at dusk, is likely to cross paths with several of these species without even trying.
Lizards are far from the only wildlife adapting to the valley’s extremes. Readers who want to keep exploring Southern Nevada’s smaller residents might also look into the region’s types of mosquitoes in Las Vegas, while anyone curious how different a lizard community can look outside the desert can compare notes with the types of lizards in Florida and its humid, subtropical species mix.