Diversity of Coleoptera Insects in Grassland of Hohhot City
In order to clarify the species and distribution of Coleoptera insects in the grasslands of Hohhot City,the detailed study was conducted on the diversity of Coleoptera insects.From June to September 2022,insect collection was carried out on 7 designated inspection routes using the net catching method.The species of Coleoptera pests were identified by their appearance,and the diversity of Coleoptera in-sects was analyzed using species richness index,diversity index,dominance index,evenness index and Jaccad similarity coefficient.The results showed that a total of 1015 insect specimens were obtained from this survey,which were identified as belonging to 49 species and 17 families.The dominant families were Meloidae and Chrysomelidae,accounting for 19.15%and 23.40%of the total insect species,respective-ly.Mylabris calida Pallas was distributed in various regions.The species richness index,the diversity in-dex,and the evenness index of Coleoptera insects were the highest but the dominance index was moderate in Horinger County.The difference in species evenness index between different regions was relatively small.This study was to clarify and enrich the diversity of Coleoptera insects in the region,strengthen the prevention and management of pests,and prevent the occurrence of grassland pests.