epakros, Chalceus Zanata [A. M.] & Toledo-Piza [M.] 2004:124, Figs. 18-19 [Zoological Journal of the Linnean Society v. 140 (no. 1); ref. 27480] Rio Tapajós, São Luís, above Itaituba, 4°25'S, 56°10'W, Pará, Brazil. Holotype: MZUSP 33392. Paratypes: INPA 18590 (3), MZUSP 76070 (53, 1 c&s), UMMZ 239931 (3), USNM 368279 (3). Plus non-type material. •Valid as Chalceus epakros Zanata & Toledo-Piza 2004 -- (DoNascimiento et al. 2017:64 [ref. 35633], Meza-Vargas et al. 2021:20 [ref. 39298], Koerber et al. 2022:28 [ref. 39235], Taphorn et al. 2022:12 [ref. 41297]). Current status: Valid as Chalceus epakros Zanata & Toledo-Piza 2004. Chalceidae. Distribution: South America: Amazon and Orinoco river basins (Brazil, Colombia, Guyana, Peru). Habitat: freshwater.