Harmless · Native to the United States

Prairie lizard

Sceloporus consobrinus (Baird & Girard, 1853)

Also called northern prairie lizard, central fence lizard
Data updated October 2026

Prairie lizard basking on a weathered log, showing rough, keeled gray-brown scales
Fig. 1 — Adult basking on a log. Rough, keeled scales give spiny lizards their sandpaper look.
Underside of a male prairie lizard showing blue belly patches edged in black
Fig. 2 — Males show blue patches on each side of the belly, edged in black.

At a glance

A small, rough-scaled spiny lizard of open woodland, rocky glades and sparse grassland in the central United States. It is often the lizard people spot on fences, woodpiles and rock walls. Males flash blue belly patches; females wear wavy dark crossbars.

01

Identification

The prairie lizard is a small gray, brown, tan or reddish-brown lizard covered in rough, keeled scales. Males have a dark back with little pattern and deep iridescent blue patches on the belly and throat. Females have wavy dark lines across the back, a white belly with faint spots and often a touch of orange or red at the base of the tail. Pattern varies by region: some populations are striped, with light side stripes and a gray band down the back, while others have thin dark zigzag bands.

  1. 01Rough, keeled scales. Each back scale has a raised ridge, giving the skin a spiny, sandpaper texture.
  2. 02Blue belly in males. Bright blue patches on each side of the belly, bordered with black, plus a blue throat.
  3. 03Wavy crossbars in females. Thin dark wavy lines across the back, with some orange or red at the tail base.

Commonly confused with

The two were long treated as one species. Where their ranges meet near the Mississippi River they can look identical, and DNA testing may be needed to tell them apart.

02

Size

01 in2 in3 in4 in5 in6 in7 in8 in9 in Typical adult · about 5 in (13 cm)

Adults usually measure 3½ to 7 inches (9–18 cm) in total length, and the largest known reach about 7½ inches (19 cm). In Missouri most adults stay between 3½ and 5½ inches. Females grow larger than males, and some regional populations, such as those in southeast Kansas, average bigger than others.

03

Range & habitat

Prairie lizard on a rock in an open, sunny woodland glade
Fig. 3 — Open woodland, rocky glades and sunny edges are typical prairie lizard habitat.

Prairie lizards live in the central United States. Sources describe them across the southern half of Missouri, in Kansas and Nebraska, through most of Texas into eastern New Mexico, and in west-central, central and northern Louisiana. Distribution is patchy in places, and many populations are local.

They use open woodland and woodland edges, rocky glades and outcrops, sparsely vegetated grassland, rangeland and sandy stream corridors. Around homes they turn up on split-rail fences, firewood and lumber piles, railroad ties and rock walls.

State guides: Texas

04

Diet & predators

Prairie lizards forage by day for insects, spiders and other small invertebrates. A Kansas study of stomach contents found mostly ants and beetles, followed by plant-hoppers, true bugs, flies, spiders, springtails and grasshoppers, with the occasional snail. As insect predators they help keep pest numbers down.

Feeds on

  • Ants and beetles
  • Plant-hoppers, true bugs and flies
  • Grasshoppers
  • Spiders and snails

Preyed on by

  • Snakes, including milk snakes
  • Birds
  • Small mammals and feral cats
  • Larger lizards
Grasshopper on a grass stem
Prey — grasshoppers and other insects.
Milk snake coiled on the ground
Predator — milk snakes are a documented predator.

05

Behavior & seasons

Prairie lizards are active by day. On sunny days they bask and forage from about 8 a.m. to 1 p.m., hide during the midday heat and come out again in late afternoon. When disturbed they run along a log, slip into a crevice or climb a tree, keeping the trunk between themselves and the threat. Males hold small territories, often with two or three females.

In Missouri they are usually active from late March to mid-October, and in Kansas whenever temperatures are above about 70°F. They spend winter underground in burrows, rotting roots, stumps and rock piles. In western Kansas a lizard’s home range can be as small as a tenth of an acre.

06

Reproduction

Breeding runs from spring into early August. From mid-April to late July the female digs a flask-shaped hole in loose soil or an old sawdust pile, lays her eggs, covers them and leaves. Clutches range from 4 to 17 eggs, with about 7 on average in Kansas. Young females lay one clutch in their first season and older females two or more; Nebraska sources report up to four a year. Eggs hatch after about 6 to 8 weeks, from late July into August.

07

Conservation

The prairie lizard is not listed under the US Endangered Species Act and is common in suitable habitat; in Missouri it is often the lizard people see most around homes. It was formerly treated as part of the eastern fence lizard (as Sceloporus undulatus hyacinthinus) before being recognized as its own species. A long-term Missouri Ozarks study found more prairie lizards where tree thinning opened up the woods, and keeping woodlands open and reducing feral cats help the species.

Keep reading

Sources

Data updated October 2026 · How we build these pages