What is the purpose of entomologists to study insects? From what angles do you study insects?

There are many kinds of insects, and the research on Lepidoptera and Orthoptera mostly focuses on agriculture. Most of the research on COLEOPTERA insects is closely related to forestry. The focus of studying Hymenoptera insects is plant protection and agricultural production increase; Diptera entomologists are basically experts in infectious diseases and parasitic diseases.

Generally speaking, it studies the biological and ecological laws such as the occurrence, reproduction and diffusion of insects. Geneticists do genetic experiments with insects, bionics look for inspiration in insects, flower and bird painters also like to ponder the posture of insects, photographers and designers are attracted by the colors of insects ... there are too many categories, and so on.