Milksnake
Lampropeltis triangulum • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Lampropeltis, Species: L. triangulum
Found throughout North America, extending from southeastern Canada, through much of the eastern and central United States, down into Central America and reaching as far south as Ecuador in South America.
Look up Milksnake in the Snake Encyclopedia →Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Lampropeltis, Species: L. triangulum
Conservation
IUCN Red List status is Least Concern, though local populations can face threats from habitat fragmentation, road mortality, and illegal collection for the pet trade.
Physical Description
Displays a striking pattern of alternating red, black, and white (or yellowish) transverse bands or blotches along the dorsal and lateral surfaces. The head is relatively distinct from the neck with a dark base coloration and light mottling or markings. Scales are smooth and glossy, giving the skin a polished appearance.
Size & Dimensions
This particular specimen appears to be a juvenile or subadult, roughly 30 to 50 cm in length. Adults typically range from 60 to 120 cm (24 to 48 inches) in total length, with occasional specimens growing slightly larger.
Habitat
Highly adaptable, inhabiting a wide range of environments including deciduous and coniferous forests, fields, agricultural lands, rocky outcrops, and prairies. Typically found beneath rocks, logs, bark, or other surface cover.
Diet & Feeding
Primarily feeds on small rodents, lizards, amphibians, bird eggs, and occasionally other snakes. It is a constrictor that actively hunts and overpowers prey by wrapping its body around it.
Reproduction
Oviparous species that mates in the spring shortly after emerging from brumation. Females lay clutches typically ranging from 3 to 24 eggs in hidden, humid locations such as beneath rotting logs or underground burrows during early summer.
Look-alikes
Frequently confused with venomous coral snakes due to Batesian mimicry sharing similar red, black, and yellow/white banding patterns. Can be distinguished from coral snakes using traditional mnemonics and scale patterns, such as the snout color and the arrangement of the colored bands (red touching black in milksnakes versus red touching yellow in North American coral snakes).
Conservation Status
IUCN Red List status is Least Concern, though local populations can face threats from habitat fragmentation, road mortality, and illegal collection for the pet trade.
Cultural Significance
Historically associated with the rural myth that they could milk cows (hence the common name), though this is biologically impossible. They play a valuable ecological role in regulating rodent populations.
Notable Features
Renowned for its remarkable color mimicry of venomous elapids, serving as a classic textbook example of Batesian mimicry in evolutionary biology.