Fifteen species of Potnia Stål, 1866 are presented with descriptions, illustrations and a key for identification. The following nomenclatural changes are introduced: P. knightae sp.n. (from Guiana), P. miracyae sp.n. (from Costa Rica), P. diringshofeni sp.n. (from Brasil), P. webbi sp.n. (from Brazil), P. turrialbensis sp.n. (from Costa Rica), P. pinheiroi sp.n. (from Brazil), P. tapuruquarensis sp.n. (from Brasil), P. cornigera sp.n. (from Brazil) and P. inca sp.n. (from Peru). Potnia venosa (Germar, 1821) = Aconophora nigrivittata Walker, 1851, syn.n. = Potnia perobtusa Fowler, 1894, syn.n.. Potnia brevicornis Fowler, 1894, sp. reval. = Potnia brunneifrontis Funkhouser, 1943, syn.n. = Potnia maculata Funkhouser, 1943, syn.n.. Potnia jacula (Fabricius, 1803) = Potnia orthosoma Fonseca & Diringshofen, 1974, syn.n.
Homoptera; Membracidae; Hoplophorionini; Potnia; taxonomy