Type Locality : Male holotype from Una, Bahia, Brazil, XII.1999, K. Kato leg. (MZSP 24226)
Etymology : This species is named in honor of Maria Bethania, a Brazilian popular singer, natural from the state of Bahia.
The genus Tmesiphantes Simon, 1892 is revised. The type-species, T. nubilus Simon, 1892, is redescribed and three new species are described from the state of Bahia, Brazil: T. amadoi sp. nov., T. bethaniae sp. nov. and T. caymmii sp. nov. In addition, Tmesiphanthes physopus Mello-Leitão, 1926 and T. minensis Mello-Leitão, 1943 are transferred to Plesiopelma Pocock, 1901. T. chickeringi is considered species inquirenda.
Revista Brasileira de Zoologia 24: 971-980