Abstract
Three new species of Apatelodidae are described from Argentina, Bolivia, Brazil, and Paraguay: Apatelodesnavarroi sp. n., Apatelodeschalupae sp. n., and Apatelodesulfi sp. n., and are figured with their genitalia. Detailed examination of primary types leads to the establishment of a new synonymy: A.florisa Schaus, 1929 = A.schreiteri Schaus, 1924, syn. n., and a revised status for another Apatelodidae species previously misplaced in the Bombycidae: Apatelodesbrunnea (Dognin, 1916), comb. n.