ECOLOGICAL AND FAUNISTIC REVIEW OF THE TRUE BUGS OF INFRAORDER CIMICOMORPHA (HETEROPTERA) OF URBAN CENOSES OF KHARKIV CITY (UKRAINE).

A total 69 species from 44 genera and 6 families of the infraorder Cimicomorpha was recorded in urban cenoses of Kharkiv. For the fi rst time Xylocoris galactinus is recorded from Mainland Ukraine; Catoplatus nigriceps and Stenodema holsata -- from forest-steppe zone; Trigonotylus ruficornis -- from Left -Bank Ukraine. Five species are new to Kharkiv Region. Th e families Miridae were the richest in species (46) and individual numbers, Nabidae (9) and Tingidae (8 species) were less represented. Th e species composition and individual abundance were the highest in the city parks and green areas of the suburbs, where 38 and 46 species were registered. Within the Forest Park, 29 species were recorded, in fl oodplain meadows -- 19, and in the center of Kharkiv -- only 6 species, the number of which was an order of magnitude less than in parks and green areas of the suburbs of the city. In terms of habitat preferences, about 40 species are represented by meadow individuals (almost 60% of the total number). 10 species are classifi ed as polytopes (more than 8%). Th e forest group is represented by 15 species (about 12% out of total collected bugs). Among the trophic groups, herbivorous (most of Miridae, Tingidae) and zoophagous of diff erent specializations (Nabidae, Anthocoridae, Reduviidae, some Miridae) were dominant. Broad mesophilous (48 species) predominated in the hygropreference. 12 species are assigned as mesoxerophilous, and 9 -- mesohygrophilous. Th e main group is represented by hortobionts in habitat layer (49 species). Dendroand tamnobionts are represented by 11 species, and stratobionts are noted singly. Th e level of faunal similarity of heteropterofauna of diff erent areas (Jaccard index) was 0.10 to 0.65. Th e smallest similarity was noted between green areas of the city center and other urban cenoses (0.10-0.12). Th e maximum indices were observed for parks and forest areas (0.65), and the average for meadows (0.35-0.44). [ABSTRACT FROM AUTHOR]