Abstract
Dasycerus occultus Hashizume & Maruyama, sp. nov. is described and illustrated based on specimens from Japan (Honshu and Kyushu). The holotype of D. japonicus Nakane, 1963 was revisited. The “D. japonicus” illustrated by Löbl & Calame (1996) was found not to be D. japonicus but rather to be D. occultus sp. nov. The discussion also includes D. poseidon Hu & Liang, 2021 from Taiwan. The phylogenetic relationships of this genus from Japan based on mitochondrial DNA sequences are discussed.
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