Аннотация:Size is one of the most important parameters of living and non-living things. Our age is an age ofminiaturization. Miniaturization in electronics has made devices that used to occupy a whole room or even a building small enough to be carried in our pockets. But miniaturization is not only a trend in technology: it is also one of the trends in the evolution of life. Microinsects — the extremely diverse miniature insects less than a millimeter long are one of the most intriguing components of this microworld. Having evolved to the size of unicellular organisms, the smallest insects managed not only to preserve structural complexity, but also to invent some novel features not found in larger insects. This talk is about comprehensive study of microinsects: from morphology to connectomics, from locomotion to genomics, and also about the potential benefits of the study of microinsects for solving fundamental scientific and biotechnological problems.This study was supported by the Russian Science Foundation (project no. 22-14-00028).