316 OETHOPTEEA. 



MOLOPLUS, Scudder. 



Moloplus, Scudder, Proc. Amer. Acad. Art. Sci. xxxii. no. 9, p. 199 (1897) ; Proc. U.S. Nat. Mus. 

 xx. pp. 11, 68 (1897). 



JEoloplus contains about a dozen moderate-sized locusts that bear resemblances to 

 both Hesperotettix and Melanoplus . All the forms are distributed over the austral 

 and Sonoran regions of North America. They appear to choose as food-plants repre- 

 sentatives of several genera of the Chenopodiaceae, hence are more or less restricted 

 to localities in which these plants grow. Scudder gives a synopsis of the species iri 

 his Revision of the " Melanopli." The following forms have been recorded from, 

 or are likely to occur in, " Biologia " territory. 



1. iEoloplus tenuipennis, Scudd. 



Moloplus tenuipennis, Scudd. Proc. U.S. Nat. Mus. xx. p. 70, t. 5. fig. 5 (1897) \ 

 Hab. North America, Fort Grant, Arizona 1 . 



While no specimens are at hand from "Biologia" territory, it is quite safe to 

 include 2E. tenuipennis in our list, since the food-habits of the various species are 

 such as to insure a rather wide distribution. 



2. JEolopllLS elegans, Scudd. 



Moloplus elegans, Scudd. Proc. U.S. Nat. Mus. xx. p. 71, t. 5. fig. 6 (1897) 1 ; Scudd. & Cocker. 

 Proc. Dav. Acad. Nat. Sci. ix. p. 41 (1902) \ 



Hab. North America, Las Cruces, New Mexico 1 2 . 



Like the preceding species, this should also be looked for in Northern Mexico. 



3. JSolopluS CraSSUS, Scudd. 



Moloplus crassus, Scudd. Proc. Dav. Acad. Nat. Sci. ix. p. 42 (1902) \ 



Hab. North America, Mescalero Reservation, N. Mexico K — Mexico, San Luis 

 Potosi 1 . 



4. JSolopluS plagOSUS, Scudd. 



Pezotettix plagosus, Scudd. Ann. Rep. Chief Eng. 1876, p. 504 (1877) \ 

 Moloplus plagosus, Scudd. Proc. U.S. Nat. Mus. xx. p. 76, t. 6. fig. 1 (1897) 2 . 



Hab. North America, Northern New Mexico 1_2 , Southern Arizona (coll. L. Bruner). 



5. iEoloplus uniformis, Scudd. 



Moloplus uniformis, Scudd. Proc, U.S. Nat. Mus. xx. p. 77, t. 6. fig. 2 (1897) \ 

 Hab. North America, xlrizona ] (coll. L. Bruner), Nevada 1 . 



