La Placita (3); Maquili; Ostula.
In Michoacán the species has been found only in tropical semi-deciduous forest on the lower slopes of the Sierra de Coalcomán. From the observations made by Peters (1954:28), this snake is diurnal and feeds on teiid lizards.
Masticophis striolatus striolatus Mertens
Coluber striolatus Mertens, Zoologica (Stuttgart), 32:190, 1934.—Substitute name for Coluber lineatus Bocourt, a secondary homonym of Coluber lineatus Linnaeus = Lygophis lineatus. Type locality restricted to Presidio de Mazatlán, Sinaloa, México, by Smith and Taylor (1950a:343).
Masticophis striolatus striolatus, Zweifel and Norris, Amer. Midl. Nat., 54:242, July, 1955.
Apatzingán (4); Arteaga; Coalcomán (3); El Sabino; Jiquilpan; La Palma; La Playa (3); Lombardia; Nueva Italia; Río Cachán; Santa Ana; Uruapan (2); Volcán Jorullo; Ziracuaretiro.
This large diurnal species inhabits open scrub forest and cultivated terrain from sea level to about 1650 meters. On the Mexican Plateau it is known from the area around Lago de Chapala, to which it possibly gained access through the valleys in the headwaters of the Tepalcatepec drainage. Specimens from southern Michoacán have been reported previously by Peters (1954:28) and Duellman (1954b:16) as Masticophis flagellum lineatus.
Masticophis taeniatus australis Smith
Masticophis taeniatus australis Smith, Jour. Washington Acad. Sci., 31:390, September 11, 1941.—Guanajuato, Guanajuato, México.
Tacícuaro (2); Zamora.