Ephemeroptera from the Venezuelan Guayanas´s Uplands: Families Leptophlebiidae, Euthyplociidae and Oligoneuriidae Author Domínguez, Eduardo Instituto de Biodiversidad Neotropical (IBN), CONICET-Universidad Nacional de Tucumán. Miguel Lillo 205. 4.000 Tucumán, Argentina. E-mail: mayfly @ unt. edu. ar Author Grillet, Maria-Eugenia Laboratorio de Biología de Vectores y Parásitos, Instituto de Zoología y Ecología Tropical, Facultad de Ciencias, Universidad Central de Venezuela, AP 47058, Caracas 1041 - A, Venezuela. E-mail: maria. grillet @ ciens. ucv. ve Author Nieto, Carolina Instituto de Biodiversidad Neotropical (IBN), CONICET-Universidad Nacional de Tucumán. Miguel Lillo 205. 4.000 Tucumán, Argentina. E-mail: mayfly @ unt. edu. ar Author Molineri, Carlos Instituto de Biodiversidad Neotropical (IBN), CONICET-Universidad Nacional de Tucumán. Miguel Lillo 205. 4.000 Tucumán, Argentina. E-mail: mayfly @ unt. edu. ar Author Guerrero, Edmundo Museo del Instituto de Zoología Agrícola Francisco Fernández Yépez, Facultad de Agronomia, Universidad Central de Venezuela, Maracay, AP 4579, Maracay, Venezuela. E-mail: edmundo. guerrero @ miza-ucv. org. ve text Zootaxa 2014 2014-07-04 3827 3 301 317 journal article 5314 10.11646/zootaxa.3827.3.1 54637182-8d50-4ef3-ad88-e3ee10f3d4cd 1175-5326 4920666 8C4821D8-072C-453A-ACF6-6EC539AE96AD Euthyplociidae This is a small family of Ephemeroptera , with only three genera registered for South and Central America, and the remaining genera of the family distributed in the Ethiopian and Oriental region (Domínguez et al,. 2006). Among its species are found the largest specimens of the order.