Chrosiothes taiwan is a species of comb-footed spider in the family Theridiidae. It is endemic to Taiwan. The type series – two males – was collected from Orchid Island.
Male Chrosiothes taiwan measure 1.97- in total length. Basal color is brown. The eyes are on dark bases. The abdomen is grayish brown with dorsal black flecks. Females are unknown.