Scarabaeinae dung beetles from Ecuador: a catalog, nomenclatural acts, and distribution records Author Chamorro, William Author Marin-Armijos, Diego Author senjo, Angelico Author Vaz-De-Mello, Fernando Z. text ZooKeys 2019 826 1 343 http://dx.doi.org/10.3897/zookeys.826.26488 journal article http://dx.doi.org/10.3897/zookeys.826.26488 1313-2970-826-1 B1550A3AE54744509A44BC4366D5E110 Onthophagus (Onthophagus) marginicollis Harold, 1880 Plate 42B Onthophagus marginicollis Harold, 1880a: 31 (original description. Type locality: Ambalema). Onthophagus marginicollis : Gillet 1911a : 207 (catalog of species); Boucomont and Gillet 1927 : 207 (catalog of species); Boucomont 1932 : 303 (characters in key), 327 (distribution); Blackwelder 1944 : 211 (list of species from Latin America); Vulcano and Pereira 1967 : 563 (characters in key); Zunino and Halffter 1997 : 161 (list of species); Vaz-de-Mello 2000 : 194: (cited for Brazil); Medina et al. 2001 : 139 (list of species from Colombia); Pulido-Herrera and Zunino 2007 : 108 (catalog of species); Krajcik 2012 : 182 (complete list of species); Ratcliffe et al. 2015 : 195 (cited for Peru); Rossini et al. 2018b : 10 (list of species of the hircus complex), 11 (figure 3c); Delgado and Curoe 2014 : 65 (characters in key, cited for Panama). Onthophagus (Onthophagus) marginicollis : Chamorro et al. 2018 : 97 (cited for Ecuador). Types specimens. Onthophagus marginicollis Harold, 1880. Two syntypes examined deposited at the MNHN. Lectotype to be designated in a future work on this species group. Distribution. Brazil, Bolivia, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guatemala, Guyana, Mexico, Nicaragua, Panama, Peru, and Venezuela. Records examined. ORELLANA: Coca-Napo (1 specimen MQCAZ). Temporal data. Collected in April. Remarks. Inhabits the lowland evergreen forests of the Amazon region. The collection method is unknown.