The paper presents the results of a laboratory study of scientific collections of plant material samples with colonies of scale insects identified on tree and shrubbery crops of the Crimea (on fruit crops: pear, peach, apricot, on conifers: pine, juniper, on subtropical: laurel, olive; and on ornamental: oak, poplar, euonymus). The research goal was to study the morphological features of the identified species of scale insects, including the collection of photographic material according to the structural features of the scutes, preparation of micropreparations from the bodies of female scale insects, and collection of photographic material based on the results of microscopic examination of the diagnostic structures of the female scale insects. The research was carried out on samples of aboveground parts of plants (leaves, pieces of bark, shoots) with colonies of Diaspididae, collected by the authors in 2018 on the territory of the Republic of Crimea. Samples with colonies were viewed under a Carl Zeiss Stemmi 508 binocular microscope, and female specimens from the colony were selected. Females infected with fungal infections were discarded. Selected specimens of females were later used for the preparation of total micropreparations for microscopic examination of the female pygidium and identification of the species. Microscopic examination was carried out using an Axio Imager A2 microscope and Zen 2.3 software (Carl Zeiss Microscopy GmbnH). The species were identified in 2 stages: preliminary – according to the structural features of the scutellum and final – according to the results of microscopic examination of the body and pygidium morphology of females. As a result, 11 species of the identified scutes were identified, an original illustrative photographic material was prepared on the morphology of scutes of the identified species (structural features, location of larval skins). An illustrative photographic material was prepared from the prepared micropreparations, which indicates the main diagnostic structures of the pygidium of female scale insects, which should be paid attention to when identifying scale insects to species. Since the morphology of scale insects in monographs by domestic authors is often presented in the form of drawings and diagrams, the offered illustrative photographic material can be used as an additional reference material by specialists in quarantine and plant protection who diagnose pests, as well as when conducting survey measures to establish phytosanitary state of the territory and timely implementation of protective measures.