Six-lined Racerunner

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Six-lined racerunner
Aspidoscelis sexlineata (male).jpg
Male six-lined racerunner (Aspidoscelis sexlineata).
Conservation status
Not evaluated (IUCN 3.1)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Sauria
Family: Teiidae
Genus: Aspidoscelis
Species: A. sexlineata
Binomial name
Aspidoscelis sexlineata
(Linnaeus, 1766)
Synonyms

The six-lined racerunner (Aspidoscelis sexlineata) is a species of lizard endemic to the United States.

Geographic range[edit]

A. sexlineata is found throughout much of the western portion of the United States, across the Great Plains to southern Texas and northern Mexico, and south to northern South America.

Description[edit]

The six-lined racerunner is typically dark green, brown, or black in color, with six yellow or green-yellow stripes that extend down the body from head to tail. The underside is usually white in color on females, and a pale blue in males. Males also sometimes have a pale green-colored throat. They are slender-bodied, with a tail nearly twice the body length.

Behavior[edit]

Like other species of whiptail lizards, the six-lined racerunner is diurnal and insectivorous. They are wary, energetic, and fast moving, with speeds of up to 18 mph (29 kmh), darting for cover if approached.

Habitat[edit]

Due to its extensive range, A. sexlineata is found in a wide variety of habitats including grasslands, woodlands, open floodplains, or rocky outcroppings. It prefers lower elevations, with dry loamy soils.

Reproduction[edit]

Breeding takes place in the spring and early summer, with up to six eggs being laid in mid-summer and hatching six to eight weeks later. A second clutch of eggs may be laid several weeks after the first.

Subspecies[edit]

There are three recognized subspecies of A. sexlineata:

Conservation status[edit]

The six-lined racerunner is listed as a species of concern in the state of Michigan, due to its limited population but otherwise holds no official conservation status.

See also[edit]

References[edit]

  1. ^ The Reptile Database. www.reptile-database.org.

External links[edit]

Data related to Aspidoscelis at Wikispecies Media related to Aspidoscelis sexlineata at Wikimedia Commons