Based on my revision of the types of the Neotropical genera Nyctelia Latreille, 1825 (Nycteliini), Praocis Eschscholtz, 1829 (Praocini), Scotobius Germar, 1824, and Emmallodera Blanchard, 1842 (Scotobiini), nine NEW SYNONYMIES are proposed and illustrated: Nyctelia roigi Marcuzzi, 1977 with N. quadricarinata Fairmaire, 1905; Praocis freyi Marcuzzi, 1977 with P. uretai Kulzer, 1958; Praocis larr...

The effect of exposure duration on the toxicity of a forest insecticide (carbaryl) was assessed under environmentally realistic exposure regimes against two stream invertebrates indigenous to the United States Pacific Northwest, Calineuria californica (Plecoptera: Perlidae) and Cinygma sp. (Ephemeroptera: Heptageniidae). Laboratory bioassays were conducted to evaluate the relationship between p...

A new species of the Neoperla clymene group (Plecoptera, Perlidae), Neoperla chebalinga sp. n. from Guangdong Province of southern China is described, illustrated, and compared with related taxa. The new species is characterized by the slender aedeagal tube, strongly sclerotized dorsally, and weakly sclerotized ventrally with an upcurved, medial, finger-like membranous lobe. Additionally the ae...

This article presents data on the study of fauna Plecoptera watercourses in Uzbekistan. On basis original collections larvae/nymphs and adults stoneflies from literary sources, a revision Uzbekistan was carried out, which currently numbers 48 species belonging to 19 genera 7 families. Among them, endemic were identified, first identified for Central Asia