The spider species name Pelecopsis montana Seo 2018 (Linyphiidae) is preoccupied and requires a replacement name. We establish herein the necessary replacement nomen, namely: Pelecopsis seoi nom. nov. The homonymy of the recently synonymized genus name Collis Seo 2018 (Linyphiidae) and the possible homonymy of Hahnia montana Seo 2017 (Hahniidae) in the near future are also briefly discussed.
