34 PROCEEDINGS OF THE ACADEMY OF [Feb., 



One of the specimens examined has the brown shades much darker 

 than the other, and the femoral niaculations more distinct in conse- 

 quence. 



The greater angle of the face appears to be the most satisfactory 

 structural character to separate this species from the allied A. coloradus. 



OPEIA McNeill. 

 Opeia testacea Scudder. 



San Bernardino Ranch, 3,750 feet, August (F. H. Snow), 1 c?, 1 9 . 



This species has previously been recorded from a number of localities 

 in southern California, but not from Arizona. 



OKPHULELLA Giglio-Tos. 

 Orphulella compta Scudder. 



San Bernardino Ranch, 3,750 feet, August (F. H. Snow), 2 6^,3 9 . 



The two males are dull brown in color, one female ochraceous, 

 another very dark brown and the third in the green phase. In measure- 

 ments they agree closely with the types. 



BOOPEDON Thomas. 

 Bobpedon fuscum Bruner. 



San Bernardino Ranch, 3,750 feet, August (F. H. Snow), 1 c?. 



This specimen is typical of this form, which appears to be doubtfully 

 separable from mibihmi (Say). The only differential character which 

 appears constant when compared with three males of nuhilum from 

 Nebraska and Colorado is the absence of a pale pregenicular annulus 

 on the caudal femora, as the color of the caudal tibiae is uniform 

 blackish in a Pueblo, Colorado male, and the number of spines on the 

 outer tibial margin is twelve in the San Bernardino specimen and 

 ranges from eleven to thirteen in the males of nuhilum. This species 

 was described from Nogales and Phoenix, Arizona, and specimens 

 from Casas Grandes, Chihuahua, Mexico, recorded by the author as 

 B. nuhilum^ should be referred to this form, although one possesses 

 very faint traces of pregenicular annuli. 



SCYLLINA Sai. 

 Soyllina calida (Bruner). 



San Bernardino Ranch, 3,750 feet, August (F. H. Snow), 1 9 . 



This specimen clearly represents the form of the genus found in 

 Morelos, Guerrero, Michoacan and Jalisco, Mexico. It is not^closely 

 related to S. patriw (Scudder), supposed to be from California, which 



^Proc. Acad. Nat. Sci. Phlla.. 1904, p. 519. 



