Helicops trivittatus (Gray, 1849)

Type locality. “ India?” (in error) .

Distribution. Endemic to Brazil (Plt. 288A), recorded in eastern Amazonia and its contact areas with Cerrado (Plt. 288A) at low elevations of the Tocantins, Xingu, and Araguaia basins (Plt. 288B). Observed in the field in small streams and wetlands within riparian forest (Cunha and Nascimento, 1993).