Nelson's milksnake (Lampropeltis triangulum nelsoni) is a subspecies of king snake that is found in Mexico from southern Guanajuato[2] and central Jalisco[2] to the Pacific Coast.

[1][2] The range of this snake appears to be tied to the proximity of watercourses, including ones utilized for irrigation and agriculture.

It is similar in size to other king snakes, averaging 42 inches (110 cm) long, and like them, it is nonvenomous.

[1] Habitat: Semi-arid coastal thorn scrub and interior tropical deciduous forests.

They will eat birds, small rodents, lizards, amphibians, and other snakes, including venomous species.