New Stoneflies of the Suborder Perlina Latreille, 1802 (Insecta: Perlida = Plecoptera) from the Middle Permian of the Kostovaty Locality in Udmurtia, Russia

Abstract

Nine new stonefly species of the suborder Perlina from the Middle Permian Kostovaty locality, Udmurtia are described. Two species, Boreoperlidium callopterus Sinitshenkova sp. nov. and B. certus Sinitshenkova sp. nov., belong to the family Eustheniidae and six species, Properla incrassata Sinitshenkova, sp. nov., P. umbrosa Sinitshenkova, sp. nov., Kargaloperla fibrosa Sinitshenkova, sp. nov., K. queata Sinitshenkova, sp. nov., K. gratum Sinitshenkova, sp. nov., and K. postica Sinitshenkova, sp. nov., belong to the family Palaeoperlidae. Unusually great abundance and diversity of representatives of the suborder Perlina is discussed.