Two new species of Pyrrhargiolestes, with a key to the males (Odonata: Argiolestidae)

Two new species belonging to the endemic New Guinea genus Pyrrhargiolestes are described from Papua New Guinea: P. lamington sp. nov. (holotype: Mount Lamington, Oro Province, dep. in RMNH) and P. yela sp. nov. (holotype: Rossel Island, Milne Bay Province, dep. in USNM). The presumed male of P. aulicus is described for the first time….

Generic revision of Argiolestidae (Odonata), with four new genera

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…

Oligoclada mortis sp. nov. from Rondônia State, Brazil, and distributional records of other species of the genus (Odonata: Libellulidae)

Oligoclada mortis sp. nov. (holotype male deposited in MZSP: Brazil, Rondônia State, Porto Velho municipality, “T[ransect] 5-21, seg[ment]12” (09°35′19′′S, 65°02′50′′W, 106 m asl, 13 v 2010, leg. Nogueira & Mendes) is described and illustrated based on two males. The new species fits within Borror’s Group III, differing from all other described species in the genus by…

Relict occurrence of East Palaearctic dragonflies in northern European Russia, with first records of Coenagrion glaciale in Europe (Odonata: Coenagrionidae)

The East Palaearctic Coenagrion glaciale and C. hylas are characterized by a current disjunct distribution. New data from northern European Russia significantly modify the earlier known pattern of their distribution. The first European records of C. glaciale and a new record of C. hylas west of the Urals are reported from the environs of Pinega…

Recent Odonata records from southern Florida – effects of global warming?

A brief Odonata survey in southern Florida, USA, in January 2000 resulted in the discovery of two new species, Chrysobasis lucifer and Nehalennia minuta, for the USA and established populations of two other species, Tholymis citrina and Tramea calverti, that had been considered vagrants. Flight seasons of six additional species were extended. These records are…

The Odonata of Argentina: state of knowledge and updated checklist

An updated checklist of the 282 species of Odonata known to occur in Argentina is presented along with distributional information by province and ecoregion. Ten new records for the country and 87 new provincial records are provided. At present, 17 species of Odonata are considered endemic to Argentina, and distribution maps for each of them…

Nososticta rufipes sp. nov. from Misool, with notes on the other Nososticta species on the Bird’s Head Peninsula and the Raja Ampat, Indonesia (Zygoptera: Platycnemididae)

Nososticta rufipes sp. nov. is described from Misool Island (Indonesia, Papua Barat, Kabupaten Raja Ampat). New records and notes on the species of the genus Nososticta on the Bird’s Head Peninsula and Raja Ampat Islands are presented. Nososticta lorentzi (Lieftinck, 1938) is placed in synonymy with N. nigripes (Ris, 1913).

An updated checklist of Lesser Antillean Odonata

An updated checklist of known Odonata occurring in the Lesser Antilles is presented along with distributional information island by island. Twelve species are removed from previous listings and 16 new records are added, bringing the total number of species to 46. Of the new records, three correspond to the descriptions of new species and one…