The issue of tuberculosis has persisted for many years due to the active spread of the infectious agent. In Ukraine, this problem has become more acute amidst hostilities, leading to increased migration of animals, both natural and artificial. This situation poses a potential threat, exacerbating the epizootic situation and activating the spread of zoonoses. Despite this, comprehensive data on all possible sources of the pathogen and ways of introducing it to previously safe areas are still lacking. Bacteriological (microscopy, isolation of mycobacterial cultures) and analytical methods were used to identify the insects as a mechanical vector of M. bovis. To achieve this goal, the dissociative strain of M. bovis 117-a passage and L-forms of mycobacteria were used. Wheat grain was contaminated with a suspension of mycobacteria at a concentration of 10 mg of mycobacterial mass in 1cm 3 of isotonic 0.9% sodium chloride solution for every 10 g of substrate.Insects were introduced into the contaminated grain, and on the 4th and 8th days, beetles were randomly selected and transferred to test tubes containing Mordovsky nutrient medium (pH 6.5) The tubes were then cultivated at a temperature of 3.0 ± 0.5°C. The study revealed the presence of experimental strains of mycobacteria in various proportions among different species of beetles. Specifically, mycobacteria were found in 100% of specimens of Oryzaephilus surinamensis, 87.5% of Calathus melanocephalus, 100% of Armadillidium vulgare, 62.5% of Rhyparochromus vulgaris, 75% of Forficula auricularia, 87.5% of Sitophilus oryzae, and 87.5% of Tenebrio molitor. This suggests that insects of different species and at different stages of development are capable of mechanically transferring mycobacteria. Additionally, the morphological similarity of microbial cells after passage through beetles with the original strain indicates that the organisms of these insects may provide a susceptible environment for mycobacteria.