A new species of Bristletail of the Genus <i>Ditrigoniophthalmus</i> (Microcoryphia, Machilidae) from the Altai Region

A new species of bristletail, Ditrigoniophthalmus charyshensis sp. n., is described from the northwestern Altais, which is the closest to D. ongudaensis Kaplin 2023 in structure of the eyes and paired ocelli, legs, and ovipositor. Their main differences lie in structure of the main segment (scapus) and flagellum of the male antennae, the maxillary palps and mandibulae of the male and female, and the male reproductive apparatus.