Material. Antioquia, Jerico (UVZ 83021); ?Antioquia/?Caldas/?Cauca/?Risaralda/?Valle del Cauca, Rio Cauca valley (NHMUK, lectotype); Caldas, near Manizales, leg. xii.2015 (FEM 173093-173096, 173098, 194177); /Cundinamarca, Bogota, ex Brooklyn Museum (ANSP 268137).
Ecology. Records with precise locality are in Cauca Valley montane forests ecoregion. The actual habitat is unknown.
Remarks. The records from Antioquia and Caldas are the first precise localities for this species, and are both within the eastern and western slopes of the two Cordilleras that delimit the geographic valley of the Cauca River, at elevations in the 1800-2000 m range. Colour variation was observed among the few specimens examined; some specimens have a dark apex (first 2-3 whorls). In addition, the degree of connectedness of the three predominant concentric brown bands is variable, with some shells appearing nearly fully covered by the brown areas, while in others, more of the white background can be seen. PILSBRY (1898 [1897-1898]: 248) compared this species with D. smithii (da Costa, 1898) and D. blandi Pilsbry, 1898, and suggested that these taxa may be closely related. We concur with Pilsbry on the similarity with D. blandi (but see below under D. smithii); while the three species are similar in size and shape, D. smithii, known only from the the type series, does not exhibit white dots within the dark stripes as in the other two taxa. Occurrence of this species near Bogota remains to be confirmed, as Bogota is across the Central Cordillera and the valley of the Magdalena River, relative to the other known localities.