erythrurus, Plethodectes Cope [E. D.] 1870:563, Figs. [Proceedings of the American Philosophical Society v. 11; ref. 914] Pebas, Amazon system, Peru. Holotype (unique): ANSP 8032 (poor condition). Type catalog: Böhlke 1984:45 [ref. 13621]. •Valid as Chalceus erythrurus (Cope 1870) -- (Ortega & Vari 1986:7 [ref. 9708], Lima in Reis et al. 2003:121 [ref. 27061], Zanata & Toledo-Piza 2004:115 [ref. 27480], Barriga Salazar 2014:106 [ref. 35745], DoNascimiento et al. 2017:64 [ref. 35633], Meza-Vargas et al. 2021:20 [ref. 39298]). Current status: Valid as Chalceus erythrurus (Cope 1870). Chalceidae. Distribution: South America: upper Amazon River basin (Brazil, Ecuador, Colombia and Peru). Habitat: freshwater.