Lygophis dilepis Cope, 1862

Type locality. Paraguay .

Distribution. Known from Argentina, Bolivia, Brazil, and Paraguay mostly at the South American open diagonal (Plt. 391A). In Brazil, widespread in the Caatinga, and restricted to the western portion of the Cerrado and its contact with the Chaco and Pantanal, forming a disjunct distribution along the open diagonal of South America (Plt. 391A). Recorded from low to intermediate elevations (Plt. 391B). Previous map and taxonomy in Dixon (1989). Observed in the field in xerophytic forest and semi arid shrubland (Giraudo, 2001; Giraudo and Scrocchi, 2002; Guedes et al., 2014).