As a result of research in 2019, 21 species out of 7 families of Hemoptera were identified in the Charyn State National Natural Park. From these species composition, 14 species are zoophages; the remaining 7 species are zoophytophages. Identified all species have a wide selection of hunting objects, feed on aquatic invertebrates, including regulating the numbers of blood-sucking mosquito larvae (Culicidae). The main purpose of the research is to identify the species composition of the aquatic hemiptera Charyn State National Natural Park. Here, a systematic special study of the fauna of the aquatic hemiptera was not carried out before. Only 2 articles on half-winged animals have been published. Aquatic Hemiptera insects by species diversity and environmental features are one of the groups most suitable for its use in various environmental studies; they are well adapted to various environmental conditions.

The article presents the results o field research in 2019-2020 in South-Eastern Kazakhstan. Objective: To study the fauna, biology, ecology and distribution of terrestrial hemiptera in the territory of South-Eastern Kazakhstan. Therefore, on the basis of our own research, an inventory and a comprehensive analysis of the fauna of terrestrial hemiptera were carried out and an annotated list was compiled. As a result of the conducted research, 59 species of terrestrial hemiptera from 36 genera were identified. Among them, the following genera are distinguished by species diversity: Nysius (7 species), Cymus, Geocoris (4 species each), Spilostethus, Oxycarenus (3 species each), and in the remaining 31 genera, 1-2 species are known. Hemiptera are characterized by wintering at different stages of development. Hemiptera wintering in the imago stage is 49 species, in the egg stage 6 species overwinter, in the imago and larval stages 4 species overwinter. According to the number of generations per year, all species of terrestrial hemiptera of South-Eastern Kazakhstan can be divided into several groups: 1) monovoltine (49 species), 2) bivoltine (9 species), 3) polyvoltine (1 species). Different species of hemiptera have different requirements for the degree of moisture content of the habitat. On this basis, the following ecological groups of species are distinguished: xerophiles (2 species), meso-xerophiles (31 species), mesophiles (26 species). According to their location, the terrestrial hemiptera of South-Eastern Kazakhstan are divided into several groups: dendrobionts (7 species), dendromnobionts (1 species), hortobionts (26 species), herpetobionts (18 species), and herpetobionts (7 species). According to food connections, zoophages and phytophages are distinguished among ground bugs. Zoophages include 4 species, the rest are phytophages. Phytophages are divided into 4 groups according to the breadth of specialization: a) polyphages (35 species), b) broad oligophages (6 species), c) narrow oligophages (10 species), d) monophages (4 species). Nysius pilosulus Horvath, 1904 was recorded for the first time in Kazakhstan.

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