A new species of freshwater crab of the genus Neostrengeria Pretzmann, 1965, N. binderi, is described from Alto de Cunday, Tolima Department, Colombia. The addition of this new species brings to 18 species and 2 subspecies the total number of taxa known in this genus endemic to the Eastern Andes of Colombia. The genus Neostrengeria Pretzmann, 1965, comprising 18 species and 2 subspecies of pseudothelphusid crabs, is endemic to the Eastern Andes of Colombia. On the west slope, the genus was known as far south as