1912.] NATURAL SCIENCES OF PHILADELPHIA. 113 



Plectrotettix CALIDUS (p. 101). 



Based upon an unstated number of specimens from four localities. 

 Single type here designated: o 1 ; Cuernavaca, Morelos, Mexico; 

 0. W. Barrett. 



Plectrotettix excelsus (pp. 101, 102). 



Described from two females from different localities. 

 Single type here designated: 9 ; Tlalpam, near City of Mexico; 

 Barrett. 



Zapata brevipennis (p. 103) Tab. I, figs. 22, 22a. 



Based on a pair from different localities. 



Single type there designated: unique figured 9 ; Lerdo, Durango, 

 Mexico, November, [1887]; Bruner. 



Stirapleura salina (pp. 106, 107). 



Described from two females from the same locality. 

 Single type here designated: 9 ; Salina Cruz, Tehuantepec, 

 Mexico, December, [1898]; Deam. 



Stirapleura meridionalis (pp. 106, 107). 



Described from a pair from one locality. 



Single type here designated : unique 9 ; Salina Cruz, Tehuantepec, 

 Mexico, December, [1898]; Deam. 



Stirapleura brachyptera (pp. 105, 108). 



Described from a unique female from Oaxaca, Mexico, [June 28]; 

 Deam. 



Ageneotettix australis (pp. 109, 110). 



Based on a series of specimens from a single locality. 

 Single type here designated: 9 ; Phoenix, Arizona; Kunze. 



Ageneotettix curtipennis (p. 109). 



Based on an unspecified number of specimens from southern 

 Colorado. 



Single type here designated: 9 ; [Durango], Colorado, [August 

 7, 1899]. 



AULOCARA BREVIPENNE (p. 111). 



Described from a unique male from Comancho, Zacatecas, Mexico. 

 November, [1887]; Bruner. 

 8 



