Two species of Pseudagrion are reported from Baluchistan-Seistan, South-East Iran. P. decorum is an Oriental, and P. cf laidlawi a south-east Palaearctic species with Oriental affinities.
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…
Macrothemis fallax spec., nov is described and figured from males collected in Belize and central Panama. It is apparently closely related to the widespread species, M. pseudimitans Calvert, 1898, with which it has hitherto been confused. These two species differ in shape of the cerci and epiproct, metafemoral armature, and thoracic and tibial coloration. A…
Final-instar exuviae left at the emergence site by Odonata can provide information of high quality for measuring sex ratio, especially of Anisoptera. Criteria are listed according to which counts of such exuviae are acceptable for this purpose. Records of sex ratio of Odonata, published and unpublished, are critically reviewed, and 194 that meet the listed…
A few Odonata from Ethiopia E. D.V. Prendergasta Dorset International Journal of Odonatology, Volume 1, Issue 1, Pages 94-96, 1998https://doi.org/10.1080/13887890.1998.9748095Published: 1 October 1998 Full text PDF Copyright information Issue section: Note
Information (published and unpublished) on ecology, phenology, and geographical distribution of Lindenia tetraphylla is reviewed. It reaches from Sardinia (Italy; in the past also Spain) in the West, along the northern coasts of the Mediterranean, the Caspian region and the Middle East, to Kazakhstan, Kirgizia, Afghanistan, and Pakistan in the East. The southernmost record is…
In September and October 1998 adults of Anax junius, (Common Green Darner) were encountered in small numbers at coastal sites in southwestern U.K. Circumstantial evidence supports the inference that they reached there on winds originating from New Brunswick and Quebec Canada in early September, a time when this species regularly migrates southwards along the Atlantic…
Research about the behavior of Neotropical species is crucial to understand how the rapid environmental changes in the Neotropics affect the reproduction of various organisms. The reproductive behavior of insects in tropical ecosystems, such as those belonging to the order Odonata, is as yet scarcely known. In this article, the reproductive behavior of Erythrodiplax abjecta is described from several localities in the Colombian Andean Mountains.
Disjunct biogeographic patterns of similar species remain enigmatic within evolutionary biology. Disparate distributions typically reflect species responses to major historical events including past climate change, tectonics, dispersal, and local extinction.
We analysed COI and ITS sequences from a total of 69 European Pyrrhosoma nymphula (Sulzer, 1776) and three P. elisabethae Schmidt, 1948 to explore species boundaries and phylogeographic patterns in their Western Palearctic distributions.