Resumen
Five new species of Tanytarsus van der Wulp (Diptera: Chironomidae: Tanytarsini) from Brazil are described and illustrated. T. longitubuli sp. n. and T. pseudocurvicristatus sp. n., are described as larva, pupa and male; T. hirsutus sp. n., as male and pupa, and T. corumba sp. n. and T. jatai sp. n. as males. Except for one species from Pantanal (western central Brazil), most species were collected in southeast Brazil, from lowland streams and lakes. New occurrences of known species of Tanytarsus in Brazil, Mato Grosso do Sul and Mato Grosso states, are also given.