Guicybaeus is a monotypic genus of spiders in the family Cybaeidae containing the single species, Guicybaeus shanyii.
Distribution Guicybaeus shanyii has only been recorded from Lipu in Guangxi, China.
Etymology The genus name is a combination of , the abbreviation of Guangxi (from the name of former provincial capital Guilin), and related genus Cybaeus.
The species name honors Shan-Yi Zhou, a Chinese ant entomologist born in Lipu City.
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