The importance of tropical mountain forests for the conservation of dragonfly biodiversity: A case from the Colombian Western Andes

Forests have been widely recognized as key habitats for odonate (dragonflies and damselflies) biodiversity, but the importance of forests for holding odonate biodiversity remains understudied in tropical mountains, one of the most diverse ecosystems on the planet. Here we describe the odonate assemblage composition along the elevation gradient in the Tatamá Mountains (Colombian Cordillera Occidental).

Two new species of the family Philogeniidae (Odonata: Zygoptera) from the Western Colombian Andes

The family Philogeniidae was recently proposed as a monophyletic clade grouping the genera Philogenia and Archaeopodagrion. Here, two new species found during recent expeditions to the Western Colombian Andes are described, Archaeopodagrion fernandoi sp. nov. and Philogenia martae sp. nov. Also, Philogenia zeteki is recorded for the first time in Colombia. Natural history notes, a…

Aeshna (Hesperaeschna) condor sp. nov. from the Venezuelan Andes, with a redescription of A. (H.) joannisi, comments on other species, and descriptions of larvae (Odonata: Aeshnidae)

Aeshna (Hesperaeschna) condor sp. nov. is described and illustrated from four males and six exuviae. The adult color pattern does not resemble that of any other Venezuelan species, but structurally the new species comes closest to A. (H.) punctata and A. (H.) joannisi. This latter is here recorded for the first time from Venezuela, and…

Population structure of Polythore procera at a Colombian stream (Odonata: Polythoridae)

We studied a population of Polythore procera along a stream in the Colombian eastern Andean foothills. Mark and recapture samples were made during January to April 2006, covering both dry and wet seasons. We determined population size, daily survival probability, and longevity during the entire period and compared them with precipitation data. Age and sex…

Odonata biodiversity of the Argentine Chaco biome

Odonates of small temporary pools, marshes, large permanent ponds, oxbow lakes, dams, and perennial rivers were sampled in the semiarid Chaco biome of NW Argentina between September 2007 and December 2008. Information from 35 localities yielded 60 species; presence/absence information of species was recorded in a spatial-relational database. Alpha, beta, and gamma diversity and total…

Critical species of Odonata in the Levant

Of the 86 Odonata species so far recorded for the Levant, four are considered as endangered (Calopteryx hyalina, C. syriaca, Ceriagrion georgifreyi, Pseudagrion torridum hulae), six as vulnerable (Coenagrion vanbrinckae, P. sublacteum mortoni, Gomphus kinzelbacbi, Onychogomphus macrodon, Brachythemis fuscopalliata, Crocotbemis sanguinolenta), and two as extinct (Rhyothemis semihyalina syriaca, Urothemis edwardsi hulae). The history of odonatological…

Critical species of Odonata in northern Africa and the Arabian Peninsula

The region is broadly determined by desert, which forms a huge belt between the western Palaearctic and the Afrotropics. Fourteen out of the 125 odonate species recorded so far are endemics. There are two main centres of endemism in the region: the northern Maghreb and the southern Arabian Peninsula. Odonate habitats in the desert are…

Orthetrum julia falsum Longfield 1955, new to the dragonfly fauna of Yemen and the Arabian Penunsula (Anisoptera: Libellulidae)

Orthetrum julia (Kirby 1900), subspecies falsum Longfield 1955, is reported for the first time from Yemen and the Arabian Peninsula (1 male, Wadi al-Ahjar, 15°27’53″N 43°52’32″E). The specimen is described and compared with specimens from Africa; taxonomically relevant structures are figured. The total number of species known from Yemen is raised to 37, from the…