“…The only other described species of Adenomera with multi-note call is the allopatric A. cotuba Carvalho & Giaretta, 2013, distributed in the Cerrado savannas and dry forests of north central Brazil (Carvalho & Giaretta 2013b). Additionally, the following morphological and color features, when combined with acoustic data, can help distinguish nominal A. simonstuarti from the seven Amazonian congeners [A. andreae, A. chicomendesi, A. coca (Angulo & Reichle, 2008), A. heyeri, A. hylaedactyla, A. lutzi and A. phonotriccus; see Boistel et al 2006;Kok et al 2007;Angulo & Reichle 2008;Carvalho et al 2019bCarvalho et al , 2019cCarvalho et al , 2019d: (1) a nearly solid, dark-colored stripe along the underside of the forearm;…”