Known Plecoptera data published from Azerbaijan are critically reviewed. New records of 28 species are enumerated on the basis of specimens collected between 2017 and 2019, among them 16 are new for the fauna of Azerbaijan. Nemoura irani Aubert, 1964 is new for the whole Caucasian region, Leuctra sanainica Zhiltzova, 1960 and Plesioperla sakartvella (Zhiltzova, 1956) are new for the Greater Caucasus. The female and larva of an unknown Protonemura Kempny, 1898 species, collected in the Talysh Mts, are illustrated and described under temporary name Protonemura sp. AZE-1. A new species of Protonemura, collected both in the Azerbaijan and Georgian areas of the Greater Caucasus, will be formally described in a further paper. A male Protonemura specimen was found to be infected by mermithid worms, morphological lesions are illustrated and commented; this is the second documented case of mermithid infection in stoneflies. Subspecies level identity of Azerbaijani populations of Leuctra fusca (Linnaeus, 1758) proved to be problematic, morphological characters of the specimens are illustrated. Synonymy of Isoperla caucasica Balinsky, 1950 and I. pulchra Balinsky, 1950 under I. bithynica (Kempny, 1908) is disputed, the two names are combined under I. grammatica (Poda, 1761) sensu lato.
New records of Protonemura species are enumerated on the basis of specimens collected between 2015 and 2019 in the Greater and Lesser Caucasus. Three new species are proposed on the basis of males, females and nymphs: P. apetor sp. n. from Georgia, P. boris sp. n. from Azerbaijan and Georgia, and P. soad sp. n. from Armenia and Georgia. Comments are given on the variability of the adults of P. spinulata Martynov, 1928 and P. viridis Balinsky, 1950 on the basis of Azerbaijani and Georgian specimens. The hitherto unknown nymph of P. aculeata Theischinger, 1976, P. bacurianica bacurianica Zhiltzova, 1957, P. oreas Martynov, 1928, P. spinulata and P. viridis are described on the basis of association by pharate adults. Protonemura spinulata is new for Armenia, P. triangulata Martynov, 1928 is new for the Lesser Caucasus, and Nemoura dromokeryx Theischinger, 1976 is new for Georgia and the Caucasus. A checklist of the Protonemura species known from Anatolia, the Caucasus, the Alborz and the Levant is presented.
A new micropterous species, Leuctra khachapuri Žiak et Martynov, sp. nov., from the hippopus species-group is described and illustrated based on morphological features of males and females. The new species occurs in crenal waterbodies of the alpine zone of the Adjaro-Imeretian (Meskhetian) Mountain Range, the Lesser Caucasus.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.