FIGURE 4. Deduced phylogenetic tree of the examined 17 triatomine and one reduviid species. Tree construction was based on DNA sequence data obtained from the mitochondrial large subunit ribosomal RNA gene fragment of each species and analyzed by the neighbor joining method, using the TreeconW program, with Galtier and Gouy distances. Tree branch reliability was assessed by the bootstrap method; values above 70% are shown. Species in the Rhodniini tribe are well separated from those of the Triatomini tribe by this analysis. Potential clades within each tribe are also apparent. For definitions of abbreviations, see Figure 2.