24 PROCEEDINGS OF THE ACADEMY OF [i'^b., 



NOTES ON ORTHOPTERA FROM SOUTHERN ARIZONA, WITH DESCRIPTIONS 



OF NEW SPECIES. 



BY JAMES A. G. REHN. 



To better present the results of the study of a considerable amount 

 of material from southern Arizona, it has appeared advisable to divide 

 this paper into three parts, each of which treats of a different locality 

 or set of localities. 



These three are: first, Cochise County localities; second, Pima 

 County localities; third, Phoenix, Maricopa County. 



The total number of specimens treated in the three sections is 842, 

 the species numbering 116, of which 11 are new, 7 are new records for 

 the United States and 19 are here credited to Arizona for the first time. 



I. Cochise County. 



The specimens on which the following study is based are chiefly con- 

 tained in four collections made during the year 1905 by as many field 

 collectors. The two largest and in many respects the most important 

 ones were made in Carr Canyon, Huachuca Mountains, one in August by 

 Dr. Henry Skinner and now forming part of the Academy collection, 

 the other made in September and October by Mr. C. R. Biederman 

 and now being the property of Mr. Morgan Hebard, of Chestnut Hill, 

 Philadelphia. The third collection was made in the same range of 

 mountains as the two mentioned above, but at Palmerlee, and was due 

 to the work of Mr. Charles Schaeffer, of the Brooklyn Institute of Arts 

 and Sciences, to whose collection this series belongs. The fourth lot 

 was in some respects the most interesting as far as range extension 

 of species is concerned, and was made at San Bernardino Ranch, 3,750 

 feet elevation, by Prof. F. H. Snow, of the University of Kansas, to 

 the collection of which institution the specimens belong. 



A number of specimens from Douglas have been examined, and a 

 few labelled simply "Huachuca Mts." are also mentioned herein. 



The number of species here treated is 90, of which 8 are new, 5 pre- 

 viously known forms are here recorded from the United States for the 

 first, and 16 are recorded the first time from Arizona. The number of 

 specimens examined was 526, of which 407 belonged to the Acrididse. 



The author wishes to thank Mr. Hebard, Mr. Schaeffer and Prof. 



