Pavlova Nadezhda S. RussiaSaratovSSU. Department of Biology., 410012, Saratov, Astrakhanskaya str., 83, building. 5, Faculty of Biologynadya1818@yandex.ru Author's articles Особенности суточной активности муравьев (Hymenoptera, Formicidae) в Саратовской области Biology Features of Ants (Hymenoptera, Formicidae) in the National Park «Khvalynsky» (Saratov Region) Features Nutrition of Ants of Formica Genus (Hymenoptera, Formicidae) in the Forest Biotopes in the Vicinity of Saratov