348:. Between stripes are dark-colored fields ranging from dark brown to black and pale-colored fields near ventral scales on each side. There is a distinct lemon-yellow coloration on the sides of the head both above and below the lateral stripe. There are also white mental and gular stripes. The posterior gular fold is bordered by enlarged mesoptychial scales. The postantebrachial scales on the forearms are granular-like and only slightly enlarged. The underside is usually white in color on females, but they may have some pale blue as adults. Males have a brightly blue-hued chest and abdominal stripes. Males also sometimes have a pale green-colored throat. They are slender-bodied, with a tail nearly twice the body length. It is hypothesized that its long tail may serve as a counter-balance, allowing it to flee quickly from predators.
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the ground, sometimes in a figure eight, while simultaneously moving forward. When he finds a receptive female, the male will straddle her, curve his body over hers, and bite her on the opposite side to where his cloacal region is in order to start copulation. Males will also perform an act termed "female tending" where the male will repeatedly charge at a female trying to leave its burrow until the female allows for the male to approach and begin the reproductive process.
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321:. In a study conducted on A. sexlineata in Mexico, the majority of the individuals found were inhabiting areas near the seashore that were formed and influenced from maritime climate and hurricanes. The species' range also reaches north to Wisconsin and Minnesota. A small disjunct population is found in
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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. Males have been seen to perform an act termed "cloacal rubbing" to show arousal during breeding. This act entails the male rubbing its cloaca and pelvic region rapidly on
372:
is most active between 9:00 am and 11:30 am on clear days between late spring and early summer when the temperature is closest to 90 °F. In a different study, they found six-lined racerunners were most active between 11:00 am and 3:00 pm. They are wary, energetic, and fast moving, with speeds of
404:
as well as open xeric environments. In the lower elevations, the six-lined racerunner can be found in human-made disturbances like under voltage towers or along highways and railroads. They lay their nests around activity burrows along secondary highways and dirt roads where it is well drained.
526:, the population is found in a single public game reserve, 322 km separated from the closest known other populations in Indiana. This species has been observed to benefit from human development in some locations, with stable populations existing along road cuts and railroad tracks.
641:
Pérez-Ramos, Edmundo; Nieto-Montes de Oca, Adrián; Vargas-Contreras, Jorge A.; Cordes, James E.; Paulissen, Mark A.; Walker, James M. (September 2010). "Aspidoscelis
Sexlineata (Sauria: Teiidae) in Mexico: Distribution, Habitat, Morphology, and Taxonomy".
1061:
Taylor, H.L; Paulissen, M.A; Walker, J.M; Cordes, J.E (2011). "Breadth and
Overlap of diet between syntopic populations of parthenogenetic Aspidoscelis tesselata C and gonochoristic Aspidoscelis sexlineata (Squamata: Teiidae) in southeastern Colorado".
1140:
Pérez-Ramos, Edmundo; de Oca, Adrián Nieto-Montes; Vargas-Contreras, Jorge A.; Cordes, James E.; Paulissen, Mark A.; Walker, James M. (2010). "Aspidoscelis
Sexlineata (Sauria: Teiidae) in Mexico: Distribution, Habitat, Morphology, and Taxonomy".
748:
Ballinger, R. E., Nietfeldt, J. W., & Krupa, J. J. (1979). An
Experimental Analysis of the Role of the Tail in Attaining High Running Speed in Cnemidophorus sexlineatus (Reptilia: Squamata: Lacertilia). Herpetologica, 35(2), 114–116.
892:
Steen, David A., et al. “Response of Six-Lined
Racerunner (Aspidoscelis Sexlineata) to Habitat Restoration in Fire-Suppressed Longleaf Pine (Pinus Palustris) Sandhills.” Restoration Ecology, vol. 21, no. 4, 2013, pp. 457–63,
953:
Trauth, Stanley E. “Nesting
Habitat and Reproductive Characteristics of the Lizard Cnemidophorus Sexlineatus (Lacertilia: Teiidae).” The American Midland Naturalist, vol. 109, no. 2, 1983, pp. 289–99. JSTOR,
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up to 18 mph (29 kmh), darting for cover if approached. Aggressive behavior is common, as the dominant will chase the subordinate and often follow up with a bite to signify dominance.
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805:
Johnson, E. (2008). A study on the population size and natural history of the
Eastern Six‐lined Racerunner, Aspidoscelis sexlineata, in West Virginia, with notes on other lizard species.
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1104:
Moon, Q. (2023). Determining The
Provenance And Conservation Needs Of Extralimital Six-Lined Racerunner (Aspidoscelis Sexlineata Lizards) (Doctoral dissertation).
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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
702:
Pérez-Ramos, Edmundo; de Oca, Adrián Nieto-Montes; Vargas-Contreras, Jorge A.; Cordes, James E.; Paulissen, Mark A.; Walker, James M. (September 2010).
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397:, or rocky outcroppings. Populations have also been found abundantly in areas that experience frequent fires. It prefers lower elevations, with dry
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Savannah River
Ecology Laboratory Herpetology Program - Species Profile: Six-lined Racerunner (Cnemidophorus sexlineatus)
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in Mexico has seen a large decrease in six-lined racerunner populations due to recreational vehicle damage to sand dunes.
856:"Fire and the Florida Sandhill Herpetofaunal Community: With Special Attention to Responses of Cnemidophorus sexlineatus"
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are opportunistic insectivores; they target a prey that is currently abundant in their area. The principal foods of
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909:"Nesting Habitat and Reproductive Characteristics of the Lizard Cnemidophorus sexlineatus (Lacertilia: Teiidae)"
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The six-lined racerunner is found throughout much of the southeastern and south-central portion of the
704:"Aspidoscelis sexlineata (Sauria: Teiidae) in Mexico: Distribution, Habitat, Morphology, and Taxonomy"
1314:
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817:"Aggressive behaviour and social dominance in the six-lined racerunner (Cnemidophorus sexlineatus)"
769:"Aggressive behaviour and social dominance in the six-lined racerunner (Cnemidophorus sexlineatus)"
59:
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are spiders (Araneae 16.8%), grasshoppers (orthoptera 16.8%), and leaf hoppers (Homoptera 14.1%).
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The six-lined racerunner is listed as a species of concern in the states of
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Breeding takes place in the spring and early summer, with up to six
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Red-imported fire ants are a predator of the six-lined racerunner.
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Hammerson, G.A.; Lavin, P.; Mendoza
Quijano, F. (2007).
1017:"Reproduction in Oklahoma Sceloporus and Cnemidophorus"
1274:
309:, from Maryland to Florida in the east, across the
385:is found in a wide variety of habitats including
895:https://doi.org/10.1111/j.1526-100X.2012.00939.x
606:The Reptile Database. www.reptile-database.org.
970:"Patterns of Behavior in Two Oklahoma Lizards"
8:
586:10.2305/IUCN.UK.2007.RLTS.T64287A12753706.en
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437:also prey upon beetles and butterflies.
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1216:SREL Herpetology: Six-lined Racerunner
815:Carpenter, Charles C. (January 1960).
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685:Michigan Natural Features Inventory:
360:lizards, the six-lined racerunner is
7:
767:Carpenter, Charles C. (1960-01-01).
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465:Aspidoscelis sexlineatus sexlineatus
1470:IUCN Red List least concern species
751:http://www.jstor.org/stable/3891774
572:IUCN Red List of Threatened Species
481:Aspidoscelis sexlineatus stephensae
25:
1223:, Reptiles and Amphibians of Iowa
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1238:
497:Aspidoscelis sexlineatus viridis
93:
1119:Virginia Herpetological Society
974:The American Midland Naturalist
956:https://doi.org/10.2307/2425409
913:The American Midland Naturalist
1115:"Eastern Six-lined Racerunner"
1015:Carpenter, Charles C. (1960).
968:Carpenter, Charles C. (1962).
477:Texas yellow-headed racerunner
1:
1485:Reptiles of the United States
1480:Fauna of Northeastern Mexico
854:Mushinsky, Henry R. (1985).
833:10.1016/0003-3472(60)90010-5
785:10.1016/0003-3472(60)90010-5
461:Eastern six-lined racerunner
381:Due to its extensive range,
1500:Taxa named by Carl Linnaeus
1143:The Southwestern Naturalist
1064:The Southwestern Naturalist
907:Trauth, Stanley E. (1983).
708:The Southwestern Naturalist
644:The Southwestern Naturalist
448:There are three recognized
49:Male six-lined racerunner (
1516:
1495:Reptiles described in 1766
1210:Cnemidophorus sexlineatus
618:Cnemidophorus sexlineatus
237:Cnemidophorus sexlineatus
221:
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90:Scientific classification
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18:Cnemidophorus sexlineatus
1306:Aspidoscelis sexlineatus
323:Tuscola County, Michigan
278:Aspidoscelis sexlineatus
199:Aspidoscelis sexlineatus
1276:Aspidoscelis sexlineata
1257:Aspidoscelis sexlineata
958:. Accessed 6 Mar. 2024.
687:Aspidoscelis sexlineata
565:Aspidoscelis sexlineata
254:Aspidoscelis sexlineata
51:Aspidoscelis sexlineata
1227:"Six-lined racerunner"
1208:Animal Diversity Web:
616:Animal Diversity Web:
356:Like other species of
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1259:at Wikimedia Commons
579:: e.T64287A12753706.
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35:Six-lined racerunner
1232:Encyclopedia of Life
1221:Six-lined Racerunner
1203:The Reptile Database
1076:10.1894/F06-GC-211.1
339:Indialantic, Florida
273:six-lined racerunner
510:Conservation status
181:A. sexlineatus
60:Conservation status
1490:Reptiles of Mexico
492:Prairie racerunner
422:Prey and Predators
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225:Lacerta sexlineata
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1419:Open Tree of Life
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29:
1437:sexlineatus
1393:NatureServe
1341:iNaturalist
1300:Wikispecies
395:floodplains
329:Description
1464:Categories
1092:A262145143
548:References
450:subspecies
444:Subspecies
387:grasslands
1163:0038-4909
1033:0018-0831
994:0003-0031
933:0003-0031
872:0018-0831
841:0003-3472
793:0003-3472
728:0038-4909
520:Wisconsin
391:woodlands
175:Species:
113:Kingdom:
107:Eukaryota
1398:2.102815
1359:10367129
1291:Q2716254
1285:Wikidata
1179:86514210
1171:40801041
1084:86594649
736:86514210
672:86514210
664:40801041
534:See also
524:Michigan
516:Michigan
470:Linnaeus
358:whiptail
352:Behavior
258:—
241:—
230:Linnaeus
216:Synonyms
207:Linnaeus
153:Family:
147:Squamata
137:Reptilia
127:Chordata
123:Phylum:
117:Animalia
103:Domain:
80:IUCN 3.1
1447:8062297
1333:2472425
1229:at the
1041:3890059
1002:2422824
941:2425409
880:3892279
472:, 1766)
393:, open
377:Habitat
362:diurnal
337:Adult,
283:species
281:) is a
209:, 1766)
163:Genus:
157:Teiidae
143:Order:
133:Class:
78: (
1444:uBio:
1424:164955
1372:914095
1320:795350
1195:Genus
1177:
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1125:16 May
1121:. 2023
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592:16 May
504:, 1966
487:, 1992
485:Trauth
319:Mexico
295:Mexico
287:lizard
260:Reeder
249:, 1839
247:Bibron
245:&
232:, 1766
1411:68356
1385:64287
1354:IRMNG
1346:73690
1175:S2CID
1167:JSTOR
1080:S2CID
1037:JSTOR
998:JSTOR
937:JSTOR
876:JSTOR
732:S2CID
668:S2CID
660:JSTOR
402:soils
399:loamy
315:Texas
1406:NCBI
1380:IUCN
1367:ITIS
1328:GBIF
1159:ISSN
1127:2023
1088:Gale
1029:ISSN
990:ISSN
929:ISSN
868:ISSN
837:ISSN
789:ISSN
724:ISSN
594:2023
577:2007
518:and
502:Lowe
415:eggs
364:and
346:tail
293:and
271:The
1315:EoL
1201:at
1151:doi
1072:doi
982:doi
921:doi
917:109
829:doi
781:doi
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