Phylogenetic tree of the Panstrongylus chinai salivary lipocalins with those from other triatomine bugs. The sequences of P. chinai lipocalin obtained in the present study were aligned with representative triatomine lipocalin sequences obtained from the non-redundant protein database, and a phylogenetic tree was constructed. The number of sequences in each contig was shown in square brackets. The sequences from the database are represented by “GenBank accession number (abbreviation of the species name)”. Td, Triatoma dimidiata; Ti, T. infestans; Tb, T. brasiliensis; Tpa, T. pallidipennis; Tpr, T. protracta; Rp, Rhodnius prolixus. The scale bar represents 0.1% divergence. Bootstrap values are shown around branches.