2013] and Dagestan [Brekhov et al., 2013;Brekhov, Ilyina, 2016]. The fauna of Karachay-Cherkessia has also been studied [Brekhov, 2009]. Studies on the fauna of water beetles of such regions as Stavropol Krai and North Ossetia have not been published yet. Moreover, there are only scattered records of species in Chechnya and Ingushetia. This shows the importance of the current study.Several papers present insufficient data on the fauna of the water beetles of

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