Abstract
Arboreal hemiptera are part of the living world, occupying a special place in natural food chain and contacts with many living organisms. As a result of the study of arboreal hemipterans of South-Eastern Kazakhstan, the nutritional relationship of 44 species belonging to 7 families was revealed. As a result of the review of the literature, the biological significance of the trophic relationship of arboreal hemiptera and their role in ecology was determined. In addition, there is a description of the habitat area of them, and the number of generations they produce per year. The purpose of the research is to study the trophic relationships of arboreal hemipterans in South-Eastern Kazakhstan. This research was conducted according to various methods in the field of entomology. 4 species from the family Anthocoridae, 20 species from the family Miridae, 4 species from the family Aradidae, 4 species from the family Lygaeidae, 2 species from the family Coreidae, 3 species from the family Acanthosomatidae and 7 species from the family Pentatomidae have been identified. Among them, 7 species are zoophages, 11 species are zoophytophages, 4 species are mycetophages, 22 species are phytophages (narrow oligophytophages - 6, wide oligophytophages - 7, polyphytophages - 9). The results of the research allow to distinguish useful or harmful species of arboreal hemipterans.