Trushnov Dmitry A. RussiaSaratovSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia elizium550@yandex.ru Author's articles The Preliminary Data about Spring Beetles Fauna (Insecta: Coleoptera) of the Natural Monument «Rasskazan’ Lake» (Saratov Province) The Additional Data about Spring Beetles Fauna (Insecta: Coleoptera) of the Natural Monument «Rasskazan’ Lake» (Saratov Province)