
Source: Wikimedia Commons
Lampropeltis polyzona
A tricolour milk snake found mainly along the Pacific side of Mexico, marked by broad red bands. The former sinaloae, campbelli and nelsoni forms all belong to this species. It is hardy and easy to keep.
Lampropeltis polyzona is a non-venomous colubrid widely distributed in Mexico. It was long treated as the subspecies sinaloae of the milk snake Lampropeltis triangulum, but the revision by Ruane et al. (2014) merged it, together with the Pueblan (campbelli), Nelson's (nelsoni), arcifera and conanti forms, into Lampropeltis polyzona, so several lineages traded as distinct varieties are one species scientifically. Adults reach 91 to 122 cm. The pattern is banding in red, black and white or cream, the red bands being notably broad in the Sinaloan lineage, and is regarded as mimicry of venomous coral snakes. It occupies habitats from arid lowlands to mountains. In captivity it is hardy and feeds readily, making it a manageable beginner species. It is separated from the related L. ruthveni by a head only slightly distinct from the neck.
Source: Wikipedia (CC BY-SA 4.0)
The Sinaloan Milk Snake lives Over 20 years in captivity.
The Sinaloan Milk Snake grows to 91-122cm.
Origin
Mexico, including Sinaloa, Sonora, Colima, Guerrero, Jalisco, Michoacan, Oaxaca, Puebla, Hidalgo and Veracruz
Lifespan
Over 20 years in captivity
Size
91-122cm
Humidity
Sources: ReptiFiles: Milksnake Care Sheet / Reptiles Magazine: Sinaloan Milk Snake / The Bio Dude: Pueblan Milksnake Caresheet / Reptile Database
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Lampropeltis polyzona Cope, 1860
Synonyms: Lampropeltis triangulum polyzona Cope, 1860, Lampropeltis triangulum campbelli Quinn, 1983, Lampropeltis triangulum nelsoni Blanchard, 1920, Lampropeltis triangulum arcifera (Werner, 1903)
Authority databases: GBIF · Reptile Database
Nomenclature follows global taxonomic authority databases.
Not listed in any appendix of the Convention on International Trade in Endangered Species (CITES) (not registered in Species+). Does not fall under either the specified animals listed in the appended table of the Ordinance for Enforcement of the Animal Welfare and Management Law, nor the specified invasive alien species under the Invasive Alien Species Act.
Sources: CITES Appendices (species not listed) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
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40〜60%
Frozen-thawed mice
Aim for a basking surface of 29-32C, a cool side of 23-27C and night-time temperatures of 21-23C. Hold humidity at 40-60 per cent, the general figure for milk snakes. Shedding in patches indicates humidity is too low, so add a humid hide or mist more often.
A minimum of about 120 x 60 x 60 cm per adult is recommended, with at least 45 cm of height so lighting can be used safely. Provide snug hides on both the warm and cool sides, plus branches and cork to climb. Use a front-opening enclosure that locks securely.
It is carnivorous and in captivity is fed appropriately sized frozen-thawed mice. Always feed it alone in the enclosure.
Kingsnakes are ophiophagous and will eat each other, so they must be kept alone. They are generally docile and easy to handle, but wash your hands after feeding so they do not mistake them for prey.
The species is not listed in the CITES appendices, and it is neither a specified animal nor an invasive alien species under Japanese law. It is non-venomous and harmless to people, but escaped snakes are hard to recover, so keep the enclosure securely locked. Its red, black and white banding mimics venomous coral snakes, but the species itself is harmless. The trade names Sinaloan, Pueblan and Nelson's all refer to this one species, so check how the lineage is described when buying.
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The average lifespan of Sinaloan Milk Snake is Over 20 years in captivity. With proper care and nutrition, they can live a long and healthy life.
Sinaloan Milk Snake typically reaches 91-122cm as an adult. Size may vary depending on care conditions and individual genetics.
Sinaloan Milk Snake feeds on: Frozen-thawed mice. Aim for a balanced diet with appropriate feeding frequency.
The price of Sinaloan Milk Snake varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026