Influence of high altitude-zone and biotopical confinedness on distribution of the selected groups of insects

In paper the high altitude-zone distribution of dragonflies (Odonata) larvae and flies (Diptera, Syrphidai) at plain, foothills and mountains of northern macroslope of Main Caucasus Ridge is given. On character of high altitude-zone structure the eurytopic, stenotopic and oligotopic ecological groups are revealed. It is defined that for dragonflies larvae the formation of species diversity and biotopical confinedness depends on existence suitable for passing of life cycle by larvae in water ecosystems, and for flies (Diptera, Syrphidai) - the existence of the anthophilous complex depending on ecological or geographical conditions.