Three new species of the genus Cloeodes Traver (Ephemeroptera: Baetidae) from Uruguay Nieto, Carolina Emmerich, Daniel Zootaxa 2011 2996 57 65 5ZBTQ [151,347,1303,1328] Insecta Baetidae Cloeodes Animalia Ephemeroptera 4 61 Arthropoda species guenoa sp. nov.   Etymology.“ Guenoa” is the name of the native people who inhabits the current districts of Treinta y Tres, Cerro Largo and Tacuarembó.   Diagnosis.  Cloeodes guenoa  sp. nov.can be distinguished from the other species of the genus by the following combination of characters: 1) hind wing pads present; 2) lingua with rounded projection and longer than superlinguae ( Fig. 18); 3) labium with segment III of palpi rounded ( Fig. 20); 4) dorsal margin of femora with a row of pointed spines, apically with a subquadrangular projection and two blunt spines ( Fig. 21); 5) abdominal color pattern as in Fig. 2, with segments III-VII with two whitish spots near midline, segments IV and VIII pale brown.   Material. Holotypefemale mature nymph, URUGUAY, Tacuarembó, R5, km 379, Arroyo Tranqueras, S 31º47´29´´, W 55º 58´51´´, 124m, 22/ 2/ 2008, Emmerich & Molineri colls. Paratypessix nymphs (one dissected) same data as holotype. Three nymphs: Lavalleja, R8, km 190, Arroyo Tapes Chico, S 33º 59´18´´, W 54º 46´54´´, 130m, 4/ 3/ 2008, Emmerich & Pérez colls. One nymph: Treinta y Tres, Quebrada de los Cuervos, Arroyo Los Helechos, S 32º 55’ 27.3’’, W 54º 27’ 34.4’’,  125 m. 8/ 11/ 2004, D. Emmerich & E. Morelli colls. Six nymphs: Maldonado, R 109, Cerro Cordillera, Arroyo sin nombre, S 34º 20’ 29.4’’, W 54º 37’ 40.5’’, 301 m, 23/ 3/ 10, D. Emmerich & C. Molineri colls.