Review and contribution to the stonefly (Insecta: Plecoptera) fauna of Azerbaijan Author Murányi, Dávid Department of Zoology, Eszterházy Károly University, Leányka u. 6, H- 3300 Eger, Hungary. Author Manko, Peter Department of Ecology, University of Prešov, 17. novembra 1, SK- 08001 Prešov, Slovakia. Author Kovács, Tibor Mátra Museum of Hungarian Natural History Museum, Kossuth Lajos u. 40, H- 3200 Gyöngyös, Hungary. Author Vinçon, Gilles 55 Bd Joseph Vallier, F- 38100 Grenoble, France. Author Žiak, Matej Andrej Kmeť Museum, Slovak National Museum - Museums in Martin, Andreja Kmeťa str. 20, SK- 03601 Martin, Slovakia. Author Kerimova, Ilhama G. Institute of Zoology, Azerbaijan National Academy of Sciences, 504 th block 1128 th Side Str., A. Abbaszadeh Str., AZ- 1073 Baku, Azerbaijan. Author Snegovaya, Nataly Yurievna Institute of Zoology, Azerbaijan National Academy of Sciences, 504 th block 1128 th Side Str., A. Abbaszadeh Str., AZ- 1073 Baku, Azerbaijan. Author Oboňa, Jozef Department of Ecology, University of Prešov, 17. novembra 1, SK- 08001 Prešov, Slovakia. text Zootaxa 2021 2021-05-24 4975 1 58 80 journal article 6196 10.11646/zootaxa.4975.1.2 b4c650a9-c917-4f03-aeed-e63058aaade7 1175-5326 4804613 EEFD3FFF-79E1-4EED-B74C-295A33CA50DA Protonemura bacurianica bacurianica Zhiltzova, 1957 Şəki-Zaqatala region: 20: 1♂ pharate, 2♀ larvae (HNHM); 21: 2♂ 1♀ (HNHM); 22: 4♀ (HNHM), 1♂ 2♀ (LMEE); 24: 1♂ (LMEE); 28: 1♂ (HNHM); 29: 1♂ 3♀ , 1♂ 2♀ larvae (HNHM), 1♂ (LMEE); 34: 1♂ (HNHM), 2♂ 2♀ larvae (LMEE). FIGURES 15–17. Mermithids from Protonemura sp. ( aculeata ?) male from the Greater Caucasus—15: mermithids as seen by transparency through the abdominal sterna; 14: four mermithid specimens dissected from the male stonefly, according to mm scale; 17: abdomen of the stonefly opened at segments 2 and 3, with mermithids protruding. Remarks. A late spring and summer species, it occurs in the Greater Caucasus ( Georgia , North Ossetia), Lesser Caucasus ( Armenia , Georgia ), most of Anatolia , and the Alborz of Iran ( Theischinger 1976 , Zhiltzova 2003, Darilmaz et al. 2016 ). Most of the range is inhabited by the nominal subspecies, but in the Central Taurus by P. bacurianica adana Vinçon & Zhiltzova, 2004 . In the Greater Caucasus of Azerbaijan , specimens were collected in moderate numbers along forest brooks of medium high elevations. Females from the Mamirli Waterfall (site 22) have a flat subgenital plate, reminiscent of P. bacurianica adana Vinçon & Zhiltzova, 2004 . New for the fauna of Azerbaijan .