Kryptochroma is a genus of South American bark-dwelling crab spiders erected by M. Machado, R. Viecelli, and C. Guzati in 2021 after a phylogenetic analysis showed that Stephanopis contained two distinctly different clades. The genus was created for the "pentacantha" clade, as well as for several newly described species.
Soares, B. A. M.; Soares, H. E. M. (1946). "Contribuição ao estudo das aranhas do estado do Espírito Santo"[Contribution to the study of spiders in the state of Espírito Santo]. Papéis Avulsos do Departamento de Zoologia, Secretaria de Agricultura, São Paulo (in Portuguese). 7: 51–72.
Mello-Leitão, C. F. de (1929). "Aphantochilidas e Thomisidas do Brasil"[Aphantochilidae and Thomisidae from Brazil]. Arquivos do Museu Nacional do Rio de Janeiro (in Portuguese). 31: 9–359.