Redescriptions of poorly known millipedes (Diplopoda, Chordeumatida) collected by Mr. Hans Sauter in Hokkaido, Japan, with inferences on their type localities

Three poorly known species of the millipede order Chordeumatida— Japanosoma scabrum Verhoeff, 1914 (Conotylidae), Macrochaeteuma sauteri Verhoeff, 1914 (Macrochaeteumatidae), and Diplomaragna gracilipes (Verhoeff, 1914) (Diplomaragnidae)—originally described from Hokkaido, Japan, are redescribed based on newly collected specimens. These species were collected in the field for the first time approximately 110 years after their original descriptions. In addition, based on examinations of specimens and a review of historical literature, the type localities of these three species are inferred to be the former Todohokke Village, Hokkaido, Japan.