The levis and ferruginea groups of Orthemis are redefined. Six new species of Orthemis are described: O. aciculata sp. nov. (♂ holotype: Surinam, Para Dist., road near forest, Zanderij I (5°32′ N, 55°10′ W), 17 January 1957, leg. J. Belle [RMNH]), O. celata sp. nov. (♂ holotype: Brazil, Pará State, Rio Gurupí, Canindé (0°30′57′ ′…
A synopsis is given of the knowledge of the genus Rhinagrion. The males of two new species are described from the Philippines: R. schneideri sp. nov. (holotype: Samar Island, Hinubangan, San Isidro, 31 March–5 April 1992) and R. reinhardi sp. nov. (holotype: Mindanao Island, Surigao del Sur, Carmen, 24 April 1995). Rhinagrion yokoii is synonymized…
A synopsis of the genus Philosina is provided. Larvae of the two known species, P. alba and P. buchi are described for the first time. The distribution of both species is discussed and information on behaviour and habitat is summarized. The specialized larvae of Philosina show a strong resemblance to those of Rhinagrion, suggesting that…
In this synopsis all 50 species of the primarily neotropical genus Telebasis are keyed, diagnosed, and illustrated. Helveciagrion is considered a junior subjective synonym of Telebasis, T. coccinata a junior subjective synonym of T. coccinea, and T. limoncocha a junior subjective synonym of T. griffinii. Six new species from South America are described: T. carvalhoi…
Gomphomacromia mexicana is shown to be a junior synonym of G. chilensis based on a comparison of the holotype male with the original description of G. chilensis and specimens identified as that species from Chile. Examination of a large series of specimens from central and southern Chile and Argentina identified both as G. paradoxa and…
This synopsis of adult Triacanthagyna includes the revalidation of two species thought to be synonyms (T. nympha and T. obscuripennis), the description of a new species (T. williamsoni; type locality: Peru, Tingo María), keys to both sexes, illustrations of diagnostic characters, and distribution maps of all species. A phylogenetic assessment of the nine species is…
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…