Oedipodini, 33, 75. 

 Oedocara, 32. 

 Oligonyx, 17, 71. 

 Opeia, 27, 32. 

 Orchelimiim, 55, 79. 

 Orchesticus, 55, 57. 

 Orocharis, 6G, 82. 

 Orphula, 29, 32, 74. 



Panchlora. 15, 70. 

 Panclilorinae, 12, 15, 70. 

 Paiiesthinae, 13, 15, 70. 

 Paraidemona, 42, 49, 50. 

 Paratettix, 24, 73. 

 Paratylotiopidia, 46, 49. 

 Paroecanthus, 65, 82. 

 Paroxya, 46, 48, 49. 

 Paxilla, 24. 

 Pedeticum, 27, 32. 

 Pedioscirtetes, 26, 32. 

 Pelmatosilpha, 14. 15, 69. 

 Peranabrus, 56. 

 Penplaneta, 15, 70. 

 Periplanetinae, 12, 14, 69. 

 Pezotettix, 49. 

 Phaedrotettix, 42, 49, 50. 

 Pliaueropterinae, 51, 52, 77 

 Phasmidae, 7, 9, 19, 71. 

 Phasmoniantis, 17, 71. 

 Phlibostroma, 29, 32. 

 Phoetaliotes, 47, 49, 50. 

 Phrixocnemis, 60, 80. 

 Phyllodromia, 13, 09. 

 Phylloscirtus, 65, 81. 

 Plagiostira, 57. 

 Platamodes, 14. 

 Plectopterinae, 13, 15, 70. 

 Plectrophorus, 32. 



Plectrotettix, 29, 32, 74. 

 Pnigode.s, .32. 

 Podisma, 45, 49, .50, 76. 

 Poecilotettix, 48, 49, .50. 

 Pseudophyllinae, 51, 53, 78. 

 Pseudopomala, 40. 

 Pseudostaiironotus, 32. 

 Psinidia, 36, 37. 

 Psoloessa, 29, 32, 74. 

 Pycnoscelus, 15. 

 Pyrgocorypha, .54, 78. 

 Pyrgomori)hinae, 40. 



Rhabdotettix, 42, 49, 50. 

 Rhadinotatum, 25, 32. 

 Rhapliidophorini,57, 58, 79. 

 Rhomalea, 40, 76. 

 Rhoraaleae, 39, 40. 



Scapteriscus, 63, 80. 

 Schistocerca, 41, 76. 

 Schizodactylii.s, 10. 

 Scirtettica, 35, 37, 75. 

 Scudderia, 53, 78. 

 Scudderiae, 52, 53, 78. 

 Sermyle, 20, 72. 

 Spharagemou, 35, 37, 75. 

 Sphingolabis, 11. 

 Spougophora, 11, 68. 

 Stagmomantis, 17, 71. 

 Steiroxys, 56, 79. 

 Stenobotlirus, 30, 32, 74. 

 Stenopelmatinae, 9, 51, 57, 



79. 

 Stenopelmatini, 57, 79. 

 Stenopelmatus, ,57, 79. 

 Stirapleura, 29, 31, 32, 74. 

 Stylopyga, 14, 15. 



Symmetropleixra, 53, 78. 

 Syrbula, 27, 32, 73. 



Taeniopodae, 39, 40. 

 Temnopter^Tc, 14, 69. 

 Tettigiae, 23, 24, 73. 

 Tettigidea, 24, 73. 

 Tettiginae, 22, 23, 72. 

 Tettix, 24, 73. 

 Theoclytes, 18. 71. 

 Thesprotia, 17, 71. 

 Thrincini, 32. 

 Thyrsocera, 13, 14, 69. 

 Timema, 20, 21. 

 Tomonotus, 35, .38, 75. 

 Tiachvracliys, 37. 

 Tridactvliui, 63. 

 Tridactylus, 63, 80. 

 Trigonidiinae, 62, 65, 81. 

 Trimerotropis, 37, 75. 

 Tropidacres, 39, 40. 

 Tropidacris, 40, 76. 

 Tropidiscliia, 58. 

 Tropidischiae, 58. 

 Tropidolophus, 35. 

 Tropldonoti, 39, 40. 

 Tropizaspis, 55. 

 Tryxalinae, 22, 23, 25, 73. 

 Tryxalis, 26, 32. 

 Tytthotyle, 38. 



Udeopsylla, 60, 61, 80. 



Vatiuae, 16, 18, 71. 



Xiphidiini, 54, 55, 79. 

 Xipliidium, 55, 79. 



Yersinia, 16, 18. 



CORRECTIONS. 



PAGE 



30, line 1, read : Tempora elongate. 



42, line 13, for c read : c-. 



45, last line but 3, read : (A^ b- c^ d'). 



84, last line of note, read : dated, ix. Cal. Nov. MDCCCLIII. 



