Cnemidophorus sexlineatus
| Six-lined racerunner | |
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| Male six-lined racerunner (Aspidoscelis sexlineata). | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Family: | Teiidae |
| Genus: | Aspidoscelis |
| Species: | A. sexlineata |
| Binomial name | |
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Aspidoscelis sexlineata (Linnaeus, 1766) |
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| Synonyms | |
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The six-lined racerunner (Aspidoscelis sexlineata) is a species of lizard native to the United States and Mexico.
The six-lined racerunner is found throughout much of the southeastern and south-central portion of the United States, from Maryland to Florida in the east, across the Great Plains to southern Texas and northern Mexico. The species' range also reaches north to Wisconsin and Minnesota. A small disjunct population is found in Tuscola County, Michigan.
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.
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.
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.
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.
There are three recognized subspecies of A. sexlineata:
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.
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Wikipedia