1912.] NATURAL SCIENCES OF PHILADELPHIA. 95 



SCHISTOCERCA LINEATA (p. 465). 



Based on two males and ten females from five localities. 

 Single type here designated: d 1 ; Barber County, Kansas; 

 Cragin; Hebard Collection; ex Bruner. 



SCHISTOCERCA VENUSTA (p. 467). 



Described from twenty-two males and sixteen females from twelve 

 localities. 



Single type here designated: c? 22 ; Indio, California, July 9, 1897; 

 Morse; Scudder Collection. 



SCHISTOCERCA MEXICANA (p. 468). 



Described from a single male; Sinaloa, Mexico; Koels; Scudder 

 Collection. 



SCHISTOCERCA SEPARATA (p. 469). 



Described from one male and two females from two localities. 

 Single type here designated : unique cf ; Chontales, Nicaragua ;. 

 Scudder Collection. 



SCHISTOCERCA OBLIQUATA (p. 470). 



Based on one male and two females from a single locality. 

 Single type here designated : unique c? ; San Jose del Cabo. 

 Lower California, Mexico; Hebard Collection, ex Bruner. 



SCHISTOCERCA PERTURBANS (p. 471). 



Based on five female specimens from three localities. 

 Single type here designated: 9 ; Paramaribo, Dutch Guiana; 

 Richardson; Scudder Collection, (from Mus. Comp. Zool.). 



VII. "The Species of the Orthopteran Genus Derotmema," 

 by Samuel Hubbard Scudder. (Proc. American Academy of 

 Arts and Sciences, Vol. XXXV, pp. 387-395, 1900.) 



In the short paper before us we find all of the species described ; 

 with the specimens which should be chosen as lectotypes, in the 

 Scudder Collection, and all of the specimens so chosen in the present 

 paper have been examined by the authors. 



The first sets of all the material collected on the Pacific Coast in 

 1897 by Professor Morse and described in this paper by Mr. Scudder 

 were to go to the author, the great majority of remaining specimens 

 were to go to Professor Morse. 



22 This specimen is chosen as the single type as it is in the best of condition 

 and is in accord with the description throughout. 



