The genus Coenagrion Kirby, 1890 (Odonata: Coenagrionidae) in the Russian part of the Caucasus.

Distribution, characters and habitats of Coenagrion spp. in the Russian part of the Caucasus is considered, chiefly by the authors' own data. There are seven species, of which C.

Lectotypification of Macromia pyramidalis Martin, 1907 (Odonata: Macromiidae) and its nomenclatural consequences.

The type series of Macromia pyramidalis Martin, 1907 was for a long time suspected to be heterogeneous. The photographs of the three syntypes preserved in Muséum National d'Histoire naturelle, Paris, France (MNHN) revealed the male syntype to be consubspecific to the current Macromia pinratani vietnamica Asahina, 1996 and the two female syntypes conspecific to the current Macromia berlandi Lieftinck, 1941. The name M.

Molecular Phylogeny of the Family Cordulegastridae (Odonata) Worldwide.

In this study, we present the first attempt at a molecular phylogenetic analysis of the entire family of Cordulegastridae involving 60% of its known species. Our analysis is in favor of reclassification of the members of the family into four genera: (i) the monophyletic genus Selys, 1854, with the number of known species reduced by three synonymizations; (ii) the genus Leach in Brewster, 1815 including all members of the group and, as a preliminary solution, the American species Novelo-Gutiérrez, 2018 and, very tentatively, Selys, 1868. The group forms a genus of its own, for which we restored the name Selys 1854, stat.

Single syntypes of Somatochlora exuberata Bartenev, 1910 (Odonata: Corduliidae), discovered in both the Milwaukee Public Museum and the University of Michigan Museum of Zoology, U.S.A., with designation of the lectotype.

A male syntype of Somatochlora exuberata Bartenev, 1910, from Kavykuchi Gazimurskie village, Transbaikalia, Siberia, June 24 (in Julian Calendar, July 7 in Gregorian Calendar) 1909, was discovered in the Milwaukee Public Museum, Wisconsin, U.S.A.

Nomenclatural reconsideration of the genera Aeschnophlebia Selys, 1883 and Planaeschna McLachlan, 1896 (Odonata, Aeshnidae).

The nominal species Aeschna milnei Selys, 1883 and Aeschnophlebia optata Selys, 1883 are considered subjective synonyms, with A. milnei as the valid name based on an act of the First Reviser. Since A.