RangkayoRangkayo is a genus of spiders in the family Thomisidae.DistributionRangkayo is only known from Sumatra, Indonesia.EtymologyThe genus and R. hitam are named after Orang Kayo Hitam, a king involved in the founding of Jambi City. R. perkaso is derived from the Jambi Malay "perkaso", taken from a poem about Rangkayo Hitam.Species, this genus includes two species:Rangkayo hitam Dhiya'ulhaq & Benjamin, 2025 – Indonesia Rangkayo perkaso Dhiya'ulhaq & Benjamin, 2025 – Indonesia