Hydrodessus maculatus Miller, 2016

Material examined. Brazil: Amazonas State, Barcelos County, “Base da Serra do Aracá, Igarapé s/ nome, margem esquerda do Ig. da Cobra” (00º52’13”N 63º27’13”W); 147 m a.s.l. 02.viii.2009; leg. N. Ferreira Jr., J. Nessimian, F. Salles, A. Santos, U. Neiss, J. Silva (INPA, 6) . Suriname: Sipaliwini district, Sipaliwini savvana nat. res. near bascamp (2º00.46’N 55º59.08’W); along river margin; 295 m a.s.l.; 31.iii.2017; leg. A. Short; SR17-0331-02A (SEMC, 5) .

Distribution. Brazil * (Amazonas), Guyana (Region IX), Suriname * (Sipaliwini) and Venezuela (Amazonas) (Mill- er 2016) (Fig. 16).

Habitat. Specimens were “seined from rocks in rapids” and “netted along margins” of the Rio Baria. They have also been found in creeks and at blacklight in a rainforest (Miller 2016) and along river margin at 295 m a.s.l.