Polymorphism in coenagrionids is widely known, mainly for Ischnura. Here, we present the case of I. capreolus, a Neotropical species of which, until now, little information concerning color polymorphism and ontogenetic color changes was known. We used a marking and recapture method to evidence ontogenetic coloration changes in females. We show that, in addition to…
The female of Oreiallagma oreas (Odonata: Coenagrionidae), with notes on the species natural history
Oreiallagma oreas (Ris, 1918) is a recently rediscovered Colombian Andean endemic species, for which the information available is very scarce. It was originally described from a single male. Since 2008, O. oreas has been recorded in new localities but its life history remained unknown. Here we describe and diagnose the species female for the first…
Telebasis igapocola sp. nov., a new damselfly from Amazonian Peru and Brazil (Odonata: Coenagrionidae)
To date 57 species of Telebasis have been described. Most are Neotropical species, only three extending North of Mexico. From Peru 17 species were known. Most are found in the Amazonian lowlands; two are known from higher elevations in the Andes. From Brazil 26 species were known. In this article another Neotropical species is described,…
Predation of Telebasis vulnerata (Odonata: Coenagrionidae) eggs by detritivorous caddisfly larva, Phylloicus pulchrus (Trichoptera: Calamoceratidae)
After observing the presence of Phylloicus pulchrus (Trichoptera: Calamoceratidae) and tadpoles of Leptodactylus albilabris (Anura: Leptodactylidae) on submerged leaves with recently laid eggs of Telebasis vulnerata (Odonata: Coenagrionidae), we set up an experiment to determine if they were consuming Odonata eggs. We collected leaves from the stream, where consumers were positioned over egg masses, and…
A description of the larva and discussion of radiation in the phytotelm breeding damselfly genus Papuagrion in New Guinea (Odonata: Zygoptera: Coenagrionidae)
The larva of Papuagrion is described and illustrated for the first time based on two specimens collected near Goroka, Papua New Guinea. The larvae were identified by matching the mitochondrial marker COI with that of an adult specimen collected at the same locality. The larvae were found in the leaf axils of Pandanus trees which…
New status for Fraser’s forgotten Aciagrion approximans krishna, stat. nov. (Odonata: Zygoptera: Coenagrionidae) from the Western Ghats of India
Aciagrion Selys, 1891 is one of the taxonomically difficult and poorly known genera of Oriental damselflies. Aciargion hisopa race krishna Fraser, 1921 was described from Mahabaleshwar, Maharashtra, India. However, later Fraser (1933) doubted the taxonomic necessity of this taxon. His notion of Aciagrion hisopa (Selys, 1876) was erroneous, as evidenced by syntypes of this species…
Microneura is a junior synonym of Protoneura (Zygoptera, Coenagrionidae)
Microneura caligata (Hagen in Selys, 1886) is an endangered damselfly presently known from five localities in the central mountains of Cuba. The precise systematic position of this species within the former Neotropical Protoneuridae has been the subject of debate, with previous results from a phylogenetic analysis based on morphology suggesting that the genus Microneura should…
Pseudagrion woodlarkensis sp. nov., a new damselfly species from Woodlark Island, Papua New Guinea (Odonata: Coenagrionidae)
Pseudagrion woodlarkensis sp. nov., a new damselfly species from Woodlark Island, Papua New Guinea, is described and male and female characters are illustrated. The new species differs from all regional congeners by having a predominantly yellow thorax with bold black stripes, and males can be clearly distinguished from all Papuan Pseudagrion species by the complex…
Preliminary list of Odonata from the Colombian Amazon, with descriptions of Inpabasis nigridorsum sp. nov. & Diaphlebia richteri sp. nov. (Coenagrionidae & Gomphidae)
The Colombian Amazon is one of the most biodiverse and unexplored regions in the world. Inventories and deeper research are needed for most of its biota, including for dragonflies. This work reports the results of a trip to the Amazon region in order to collect Odonata. It includes revision of CBUCES, CEUA and ICN entomological…
First record of Ceriagrion fallax Ris (Odonata: Coenagrionidae) preying on small web-building spiders (Arachnida: Tetragnathidae)
In montane forest of south-western Yunnan, China, a female of Ceriagrion fallax was observed and photographed preying on a small web-building spider of the genus Leucauge. This is the first record of plucking an orb-weaver spider by a representative of the genus Ceriagrion. A brief discussion on the evolution of spider feeding behaviour in odonates…