The male of Aillutticus rotundus Galiano, 1987 is described for the first time and new records are presented from the states of Acre, Mato Grosso do Sul and São Paulo, Brazil. In addition, five new species of this genus are described from Brazil: A. knysakae sp. nov. from the states of Minas Gerais, Piauí and Tocantins, A. montanus sp. nov. from the state of Minas Gerais, A. raizeri sp. nov. from the state of Mato Grosso do Sul, A. soteropolitano sp. nov. from the state of Bahia, and A. viripotens sp. nov. from the states of Rondônia and Tocantins.
Spiders; systematics; taxonomy