Four new species are described in the large genus Eutrichodesmus Silvestri, 1910, which
ranges from southern Japan in the north, through Taiwan, southern China and Indochina, to Vanuatu, Melanesia in the south: E. nadan sp.n., from a cave in Laos, as well as E. astrisimilis sp.n., E. subasteroides sp.n. and E. astriproximus sp.n., all three from caves in Vietnam