MELANOPLUS. 325 



40. Melanoplus corpulentus, Scudd. 



Melanoplus corpulent us, Bruner, MS. 1 . 



Melanoplus corpulentus, Scudd. Proc. U.S. Nat. Mas. xx. p. 313, t. 20. fig. 10 (1897) 2 ; Rehn, 

 Proc. Acad. Nat. Sci. Philad. 1907, p. 55 3 . 



Hab. North America, Silver City 2 and Las Vegas, New Mexico (Cockerell), Huachuea 

 Mts., Arizona 3 . — Mexico, Sonora, Zacatecas, Tlalpam, &c. 2 , Guadalajara, Jalisco 3 

 (Rehn). 



41. Melanoplus variabilis, Scudd. 



Pezotettix variabilis, Bruner, MS. 1 . 



Melanoplus variabilis, Scudd. Proc. U.S. Nat. Mus. xx. p. 319, t. 21. fig. 8 (1897) \ 



Hab. Mexico, city of Mexico 2 , Queretaro 2 , &c. (coll. L. Bruner). 



This insect is very common in the regions where it occurs, and is very variable in 

 colour, hence the specific name. 



42. Melanoplus plebejus, Stai. 



Pezotettix plebejus, Stal, Bihang till K. Svensk. Vet.-Ak. Handl. v. no. 9, p. 12 (1878) \ 

 Pezotettix pupaformis, Scudd. Proc. Bost. Soc. Nat. Hist. xx. pp. 83, 84 (1879) 2 . 

 Melanoplus plebejus, Scudd. Proc. U.S. Nat. Mus. xx. p. 326, t. 22. fig. 2 (1897) 3 . 



Hab. North America, Texas 1-3 . — Mexico, Victoria, Tamaulipas (coll. III. St. Lab. 

 Nat. Hist.). 



43. Melanoplus marginatus, Scudd. 



Pezotettix marginatus, Scudd. Ann. Rep. Chief Eng. 1876, p. 504 (1876) 1 . 



Melanoplus marginatus, Scudd. Proc. U.S. Nat. Mus. xx. p. 330, t. 1. fig. i and t. 22. fig. 5 (1897) 2 . 



Hab. North America, various places in Southern California x 2 , Los Angeles and 

 San Diego (coll. L. Bruner). 



This insect probably extends into Mexican territory. 



44. Melanoplus arizonae, Scudd. 



Melanoplus arizon®, Scudd. Proc. Bost. Soc. Nat. Hist. xx. pp. 64, 65 (1879) 1 ; Proc. U.S. Nat. 

 Mus. xx. p. 340 (1897) 2 ; Rehn, Trans. Amer. Ent. Soc. xxvii. p. 228 (1901) 3 . 



Hab. North America, Arizona * 2 . — Mexico, Cuernavaca, Morelos 3 . 



The Mexican citation may be an error, though this is only a surmise on the part of 

 the present writer. 



45. Melanoplus differentialis, Uhler. 



Caloptenus differentialis, Uhler, MS. (1863) \ 



Acridium differentiate, Thorn. Trans. 111. St. Agric. Soc. v. p. 450 (1865) \ 



Cyrtacanthacris differentialis, Walk. Cat. Dermapt. Salt. Brit. Mus. iv. p. 610 (1870) \ 



