The Family Baetidae (Insecta: Ephemeroptera) from Venezuelan Guayana’s Uplands Nieto, Carolina Grillet, Maria-Eugenia Domínguez, Eduardo Molineri, Carlos Guerrero, Edmundo Zootaxa 2011 2808 1 17 Q9V3 Thomas & Dominique Thomas & Dominique [151,669,1782,1807] Insecta Baetidae Camelobaetidius Animalia Ephemeroptera 3 4 Arthropoda species billi   Distribution. Brazil, French Guiana, Venezuela.   Material examined.One nymph: Maremán-Parú river, 5º 44' N, 61º 24' W, 1308 m, 23/ 11/ 2005, EG, AMO, CA and MEG cols.; 6 nymphs same locality and same collectors, 28/ 6/ 2007; 2 nymphs, same locality, 19/ 3/ 2006, EG, AMO, and MEG cols. Two nymphs: river close to Paují locality, 4º 29' N, 61º 34' W; 917 m, 17/ 3/ 2006, EG, AMO, and MEG cols. 7 nymphs: Kako-Parú stream, 5º 12' N, 61º 05' W; 1194 m, 24/ 11/ 2005, EG, AMO, CA and MEG cols.; 2 nymphs same locality, 20/ 3/ 2006, EG, AMO, and MEG cols. Three nymphs: Soroape river, 5º 06' N; 61º 34' W, 935 m, 25/ 11/ 2005, EG, AMO, CA and MEG cols. Two nymphs: Kamoirán river, 5º 37' N; 61º 21' W, 1313 m, 20/ 3/ 2006, EG, AMO, and MEG cols. Material housed at IMLexcept 5 nymphs housed at MLBV.