New species and records of Anacroneuria (Plecoptera: Perlidae) from Rio de Janeiro State, Brazil.

Six species of Anacroneuria are recorded from Parque Nacional do Itatiaia and Bacia do Rio Macaé, Rio de Janeiro State, Brazil including the description of a new species, A. itatiaiensis. Anacroneuria debilis (Pictet) is redescribed from newly collected specimens. Comments on other Anacroneuria species from Rio de Janeiro State, Brazil are also presented.