Four new species of Pachymerium centipedes from China (Geophilomorpha, Geophilidae)

The genus Pachymerium is nearly cosmopolitan and exhibits considerable dispersal capacity among geophilomorph centipedes. However, its taxonomic study in China remains notably inadequate. Based on specimens resembling Pachymerium collected from 23 provincial-level administrative regions across China, this study confirms the occurrence of five species of Pachymerium in China, four of which are newly described: P. dimorphum sp. nov., P. proximiporum sp. nov., P. multiseriale sp. nov. and P. lingshouense sp. nov.

A key to species of genus Pachymerium is provided.