A new species of Plecoptera Megaperlodes tiunovi sp. n., from the South of the Russian Far East is described and illustrated. The relationships with its close relatives are discussed. Newly discovered features are added to the diagnosis of the genus Megaperlodes, especially previously overlooked eversible lobes within the paraprocts, egg structure, and wing venation.

Plecoptera, or stoneflies, is a small order of hemimetabolous insects: according to our data, more than 3,497 species have been described so far in the world. The total number of species has enormously increased in the last 30 years (2,000 species estimated in 1976) and, if the trend continues, then it will nearly double in the near future. The order is divided into the suborders Arctoperlaria ...

The complete mitochondrial genome of the perlid stonefly Dinocras cephalotes (Curtis, 1827) was sequenced using a combined 454 and Sanger sequencing approach using the known sequence of Pteronarcys princeps Banks, 1907 (Pteronarcyidae), to identify homologous 454 reads. The genome is 15,666 bp in length and includes 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and a con...

A new species of the stonefly family Gripopterygidae, Tupiperla barbosai sp. nov. is described from the Serra dos Orgãos, Rio de Janeiro State, Brazil. Additionally, two new species records are presented from the Serra dos Orgãos, Tupiperla reichardti Froehlich and Guaranyperla guapiara Froehlich, the latter a new record for Rio de Janeiro State. A review of the species of Gripopterygidae from ...

Two species of the genus Neoperla from China are described as new: Neoperla furcostyla sp. n., and Neoperla similidella sp. n. The new species are compared to similar taxa.