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 Deltochilum (Deltohyboma) aequinoctiale (Buquet, 1844) Plate 21D Hyboma aequinoctialis Buquet, 1844: 21 (original description. Type locality: Colombie [= Colombia]). Deltochilum aequinoctiale : Burmeister 1848 : 135 (redescription); Gemminger and Harold 1869 : 995 (list, distribution); Gillet 1911a : 35 (complete list of species); Balthasar 1941 : 344 (cited for Peru); Blackwelder 1944 : 202 (list of species from Latin America); Balthasar 1951 : 329 (cited for Peru); Contreras 1951 : 221 (cited for Colombia, cited as D. aequinoctiale ); Medina et al. 2001 : 136 (cited for Colombia); Medina et al. 2003 : 65 (distribution); Krajcik 2012 : 88 (complete list of species); Ratcliffe et al. 2015 : 195 (cited for Peru). Deltochilum (Deltohyboma) aequinoctiale : Paulian 1938 : 270 (characters in key), 278 (redescription); Vulcano and Pereira 1964 : 652 (catalog of species, distribution); Vulcano and Pereira 1967 : 557 (characters in key); Carvajal et al. 2011 : 316-317 (cited for Ecuador); Chamorro et al. 2018 : 85 (figure 8H), 86 (figure 9A), 94 (cited for Ecuador). Deltochilum erodioides Harold , 1867d: 77 (original description); Gemminger and Harold 1869 : 995 (list, distribution); Harold 1880a : 18 (cited for Colombia); Kirsch 1885 : 212 (cited for Ecuador); Gillet 1911a : 36 (complete list of species); Paulian 1938 : 278 (synonym of D. (D.) aequinoctiale Buq.); Blackwelder 1944 : 202 (list of species of Latin America); Contreras 1951 : 222 (cited for Colombia); Vulcano and Pereira 1964 : 652 (cited as synonym of Deltochilum aequinotiale Buquet); Carvajal et al. 2011 : 316-317 (cited for Ecuador); Ratcliffe et al. 2015 : 195 (cited for Peru). Type specimens. Hyboma aequinotialis Buquet, 1844. One syntype examined deposited at the MNHN (ex coll. D Sharp). Lectotype to be designated in a future work on this species group. Deltochilum erodioides Harold, 1867. Two syntypes examined deposited at the MNHN (ex coll. E Steinheil, ex coll. E Harold, ex coll. R Oberthur). Lectotype to be designated in a future work on this species group. Distribution. Colombia, Ecuador, and Peru. Records examined. COTOPAXI: Bosque Integral Otonga, 2080 m (78 specimens CEMT: 7 specimens MQCAZ; 4 specimens MUTPL). PICHINCHA: Chespi, Bellavista, 1380 m (1 specimen MUTPL); Yunguilla, Loma La Liberia, 2400 m (2 specimens MUTPL); Reserva Orquideologica El Pahuma, 1975 m (1 specimen MUTPL). Literature records. BOLIVAR: au dessus de Chimbo, 1900 m ( Paulian 1938 : 280). MORONA SANTIAGO: Macas ( Paulian 1938 : 280). Temporal data. Collected in January, February, March, April, June, July, September, and December. Remarks. Inhabits the evergreen lower montane forests and montane cloud forests of the Andean region from 1300-2400 m a.s.l. Collected with pitfall traps baited with carrion and human feces. It is possible that the records cited by Paulian (1938) from Macas, Morona Santiago province, in the Ecuadorian Amazon, is a different species belonging to the same subgenus. A review of these species is needed.