Alignments of homologous proteins occur in venoms of distantly related heteropterans. Ld10a, Lethocerus distinctifemur venom peptide 10a; Pp17a, Pristhesancus plagipennis (assassin bug) venom peptide 17a. Ld11a, L. distinctifemur venom peptide 11a; Pp26a, P. plagipennis venom peptide 26a; Ld14a, L. distinctifemur venom peptide 14a; Pp_t65, P. plagipennis peptide encoded by venom gland transcript 65; Ld_f2p1, L. distinctifemur venom protein family 1, protein 1; Pp_f2p, P. plagipennis venom protein family 2