Cordillera Occidental of the Andes in Cauca, Colombia.
Holotype: Sweedish Museum of Natural History Stockholm 3131a according to Golay et al., 1993, Endogly. Venom. Snakes World 478pp.[177].
Type-locality: El Tambo, Cauca, Colombia
Until recently, this species was often considered conspecific with M. mipartitus Duméril, Bibron, and Duméril, 1854. Roze In Peters and Orejas-Miranda, 1970, Bull. U.S. Natl. Mus. 297(1):1-347[213], placed the name M. mipartitus multiscutatus in the synonymy of M. mipartitus decussatus.
