This study includes the description of a new species of the genus Andinagrion, A. garrisoni (holotype: Argentina, Río Caldera, Salta prov., 11 xi 2005, deposited at MLP), both from its adult and larval stages, a diagnosis of all known species, including a key to adults, synonymic lists, illustrations of diagnostic characters, and distribution maps.
This synopsis of adult Phyllopetalia includes the synonymy of four genera (Phyllopetalia senior subjective synonym of Rheopetalia, Odontopetalia, Eurypetalia and Ophiopetalia), four species and one subspecies (P. apicalis senior subjective synonym of Rheopetalia rex and R. apicalis decorata, and P. pudu senior subjective synonym of Ophiopetalia araucana, O. auregaster and O. Diana). P. excrescens and…