Calilestes pallidistigma and Lestomima flavostigma, both sole representatives of their respective genera, are shown to belong to the genus Rhipidolestes. Rhipidolestes flavostigma comb. nov. is determined to be a junior synonym of R. truncatidens. R. pallidistigma comb. nov. is deemed to be a valid species.

Archaeopodagrion armatum sp. nov. is described and illustrated (holotype ♂ Ecuador, Zamora Chinchipe Prov., forest S of Zamora (4°07′18″S, 78°58′22″W), 02 iv 2008, leg. KJT; in FSCA). The new species is distinct from A. bicorne and A. bilobatum by the pair of highly recurved processes on the hind margin of the prothorax of both sexes,…

In this article the genus Argiolestes s.str. is defined and three new species belonging to this group are described: A. foja sp. nov. (holotype: Foja Mountains, Indonesia, dep. in MBB}); A. muller sp. nov. (holotype: Baia River, Papua New Guinea, dep. in SAMA); A. roon sp. nov. (holotype: Roon Island, Indonesia, dep. in BPBM). New…

Two new species of the New Guinean megapodagrionid genus Argiolestes are described: A. tuberculiferus (holotype ♂ Papua New Guinea, Simbu Province, 6°43′S, 145°05′E; 900 m, 14 xii 2003) and A. verrucatus (holotype ♂ Papua New Guinea, Sandaun Province, 4°48′S, 141°39′E; 1,700-2,100 m, 08 ix 2004). We further provide additional descriptions and ecological data of new…

Published records of Mesopodagrion are reviewed and the distributions of M. tibetanum and M. yachowensis are given. Sinocnemis henanese is considered a junior synonym of S. yangbingi. Based on morphological and behavioural characters Sinocnemis is removed from Platycnemididae and placed in Megapodagrionidae. Species of Sinocnemis show a general resemblance to species of Mesopodagrion but it…

Argiolestes aurantiacus, endemic to the Bismarck Archipelago, is redescribed and three new species of Argiolestes from the Solomon Archipelago are described: A. bougainville sp. nov. (holotype ♂: Papua New Guinea, Bougainville, North Solomons, 02 i 1970), A. gizo sp. nov. (holotype ♂: Solomon Islands, Western Province, Gizo Island, alt. 1-100 m, 02 vii 1959) and…

Heteragrion makiritare sp. nov. is described from two males from the Pantepui region – holotype: Venezuela, Amazonas State, Marahuaka, Sima (3°43′N, 65°31′W), 1,140 m a.s.l., MIZA, no. 17250. It belongs in the species group whose paraprocts are absent in the male sex. The identity of H. macilentum is elucidated by examining its lectotype and a…

Amanipodagrion gilliesi was known previously only from four males collected in 1959 and 1962 in the Usambara Mountains, south-east Tanzania. Recently it has been rediscovered at two shady streams in that area. The species is not living in swamps, as previously stated, but is apparently restricted to a small area in the Amani-Sigi Forest. Data…

The subfamily Argiolestinae is raised to family level to include all zygopteran genera in which the gills of the larvae are flat and held in a horizontal plane. A diagnosis of the family is given and characters for both adults and larvae are presented. The family is divided into two subfamilies based on characters in…

The Odonata fauna of Papua New Guinea is species-rich, but human population growth and resulting modification of primary rainforests may lead to a loss of valuable habitat and species diversity. In this study, I compared the odonate assemblages of a natural tropical rainforest and a modified forest in order to assess the loss that could…