The Durango Mountain Kingsnake (Lampropeltis mexicana greeri) is a captivating subspecies of the Mexican kingsnake, notable for its striking appearance and intriguing behavior. Native to the rugged highlands of Durango, Mexico, this snake is known for its vibrant coloration, which features bold bands of red, black, and white or yellow. This striking pattern serves as a warning to potential predators, mimicking the appearance of venomous coral snakes, a classic example of Batesian mimicry. Unlike true venomous species, the Durango Mountain Kingsnake is nonvenomous and relies on constriction to subdue its prey. Its coloration not only helps with predatory avoidance but also adds to its allure among reptile enthusiasts and collectors.

In its natural habitat, the Durango Mountain Kingsnake inhabits mountainous regions with rocky outcrops and sparse vegetation. It is primarily a terrestrial species, although it can also climb to hunt or escape threats. This snake is a nocturnal hunter, using the cover of darkness to actively search for prey such as small rodents, lizards, and other small reptiles. Its adaptation to the cooler, mountainous environment is reflected in its behavior and physiology, including a preference for cooler temperatures compared to many other kingsnake species. Captive care for this subspecies involves providing a habitat that mimics these conditions, with a focus on maintaining appropriate temperature gradients and humidity levels to ensure its health and well-being.