Geographic distribution of the five species of Erythrolamprus under discussion in this paper. A The distribution of the species of Erythrolamprus under discussion in northern Venezuela and Trinidad and Tobago B More detailed view of the distribution on Trinidad and Tobago C Tobago with the known localities for E. pseudoreginae sp. n. Note that two of the markers closely overlap. Key: black stars = E. zweifeli from Cordillera de Costa in Venezuela and the island of Trinidad; green circles = E. epinephalus from the Cordillera de Mérida, Venezuela. Note that these markers denote the closest population to Tobago based on Roze (1966). Specimens examined came from several different locations. Purple stars = E. reginae from the Guianas including Orinoco Delta in Venezuela; red stars = E. melanotus from Venezuela, Trinidad, and Tobago; blue star = Erythrolamprus pseudoreginae sp. n. on Tobago.