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 Bdelyrus triangulus Cook, 1998 Plate 6D Bdelyrus triangulus Cook, 1998: 660 (original description. Type locality: Ecuador, Napo, Sunka). Bdelyrus triangulus : Cook 2000 : 553 (characters in key); Donoso et al. 2009 : Appendix II. 16 (catalog of types MQCAZ); Carvajal et al. 2011 : 318-319 (cited for Ecuador); Krajcik 2012 : 52 (complete list of species); Chamorro et al. 2018 : 91 (cited for Ecuador). Type specimens. Bdelyrus triangulus Cook, 1998. The holotype (♀) is deposited at the MQCAZ. Locality: Napo [= Orellana] Sunka, examined. Holotype (♀): "Ex: Hojarasca / Bosque Alto [hw]", "ECUADOR / NAPO: SUNKA / 29-I-89 / Legit SANDOVAL", "HOLOTYPE / Bdelyrus / triangulus Cook [p, red label]". Distribution. Only known from Ecuador. Records examined. NAPO [= ORELLANA]: Sunka (1 specimen MQCAZ). Temporal data. Collected in January. Remarks. Inhabits the lowland evergreen forests of the Amazon region at 300 m a.s.l. According to Donoso et al. (2009) this species was collected in leaf-litter.