During recent routine curatorial work in the Natural History Museum, London three additional specimens, two of Diplura nigra (F. O. Pickard-Cambridge, 1896) and one of D. sanguinea (F. O. Pickard-Cambridge, 1896) – previously not known to have been separated from the original respective type samples according the museum database – were located in a box of returned material from an external loan. Thus, the number of paralectotypes of these taxa must be revised. We also record D. sanguinea from Colombia for the first time, further expanding the distribution range of this widespread taxon. Knowledge of the linothelid taxa of Colombia is advanced, with description of Linothele gaboi sp. nov. and Linothele wiwa sp. nov., and the first Colombian distribution records of L. curvitarsis Karsch, 1879. Additionally, we also describe two new species from Peru: L. abispa sp. nov. and L. wallacei sp. nov. Linothele melloleitaoi (Brignoli, 1983), from Colombia, is considered a nomen dubium.
