The larva of the south-east Asian megapodagrionid, Podolestes orientalis, is described and figured. Specimens were collected from shallow forest pools lined with large dead leaves in secondary lowland forest. Final and earlier stadium larvae were found concentrated around the edges of pools in very shallow water. Larvae sometimes perched in exposed situations, just below the…
The larva of the genus Nesolestes is described and figured for the first time. Specimens were found in small brooklets in littoral swamp forest in south-eastern Madagascar. The larva is compared with the two other Madagascan genera of Megapodagrionidae, Protolestes and Tatocnemis, and diagnostic characters are given. The caudal lamellae are held in a horizontal…
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…
During a period of nine years, from 2000 to 2008, two consecutive studies—one focusing on observations of adult Odonata, the other on collection of larvae—were carried out in the basin of the Guadiamar River in the southwestern Iberian Peninsula. In addition to monitoring Odonata, several environmental variables were assessed, including an index based on macroinvertebrate…
Populations of Ischnura hastata found in the Azores archipelago represent the only known example of parthenogenesis in the order Odonata. In this paper, we present results from fieldwork done on the islands of São Miguel, Pico, Santa Maria, and Graciosa, aimed at characterizing population ecology and habitat preferences of this species. Sampling of several ponds…
Castoraeschna corbeti sp. nov. is described and diagnosed based on four males (holo- type: Brazil, Para State, Floresta Nacional de Carajás [6°06′13.9″S, 50°08′13.1″W, ca 600 m a.s.l.], 28 ix 2007 to be deposited in Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro). This species is similar to C. longfieldae and C. coronata…
A new coenagrionid genus, Tukanobasis, is described for T. corbeti sp. nov. found in a flooded forest in the Amazonian region of Brazil (holotype: Brazil, Amazonas State, Taraquá [3°27′15″S, 62°51′05″W, 35 m], viii 1964, in ABMM). The new genus is characterized by the presence of an apical brown spot on Hw of mature males, a…
The behaviour of Anisoptera during the period between emergence and the onset of sexual activity is poorly known, mainly because freshly emerged adults are hard to follow. In the present study the system RECCO® Transmitter/Receiver and custombuilt tags made from Schottky diodes and copper wire were used to monitor freshly emerged Anisoptera. The system had…
Papuagrion carcharodon, a new coenagrionid from the rainforest of Papua New Guinea’s Simbu Province, is described (holotype: 06°43′S, 145°05′E; 900 m a.s.l., 27 March 2004, to be deposited at Naturalis, Leiden). This new species is similar to P. ekari and P. pesechem but may be distinguished from both by the tooth-shaped lower branch of the…