Anacroneuria from northeastern South America (Insecta : Plecoptera : Perlidae)

Descriptions are given for ten new species of Anacvoneuria from Venezuela, Guyana, and Suriname, and records are given for ten species previously desc ribed from this region. The following 10 new species are described (type lo cality in parenthesis): Anacroneuria achagua (Venezuela. Portuguesa: Guanar e), A. arawak (Suriname. Brokopondo: Brownsberg Naturpark, Mazaroni Plateau ), A. chaima (Venezuela. Sucre: Rio Cocollar, 1.5 km SE Las Piedras de Coco llar), A. claudiae (Venezuela. Zulia: Rio Yasa (3 km E Kasmera), Estacion B iologica), A. karina (Venezuela. Sucre: Rio Cocollar, 1.5 km SE Las Piedras de Cocollar), A. makushi (Guyana. Kanuku Mountains, Moco Moco River), A. p aria (Venezuela. Sucre: Rio Cocollar, 1.5 km SE Las Piedras de Cocollar), A . perija (Venezuela. Zulia: Parque Nacional Perija, Rio Negro, Toromo), A. timote (Venezuela. Tachira: Quebrada Los Mirtos, 8 km S El Cobre), and A. w apishana (Guyana. Potaro River, Kaieteur Falls). Anacroneuria phantoma (Ban ks) and A. pictipes Klapalek are redescribed and a modified key to regional males is presented.