Knowledge of dung beetles in Colombia has increased in the last twenty years, due to local, regional and national efforts (Medina & Kattan 1996; Amat et al. 1997; Escobar 1997; Amezquita et al. 1999; Castellanos et al. 1999; Escobar 2000a, 2000b; Escobar & Chacon de Ulloa 2000; Vitolo 2000; Medina & Lopera 2001; Medina et al. 2002; Noriega 2002a, 2002b; Escobar 2003; Pulido et al. 2003; Escobar 2004; Noriega 2004; Garcia & Pardo 2004; Vitolo 2004; Escobar et al. 2005). In Colombia 285 species exists, in 39 genus (Medina et al. 2001; Noriega 2002a; Vaz de Mello 2003). Despite this, there are zones, including the region of SNS Marta, where they are not very extensively studied or even completely unknown. The summary of studies carried out by Escobar (2000a) only finds four species: Ontherus sanctaemartae, O. lichy, Scybalocanthon darlingtoni, and Sulcophanaeus steinheili. The following work, then, is an important contribution to the understanding of the coprophagic beetles of Colombia and especially to filling the large information gaps in the study of beetles in SNS Marta.