382 PROCEEDINGS OF THE ACADEMY OF [July, 



keys to separate the "species," To present the reasons for creating 

 the synonymy clearly, it would be best to explain the methods used in 

 reaching the conclusions. The original descriptions of ferruginea, 

 maculipennis, texana and buddiana were tabulated in parallel columns, 

 and from the mass of material specimens which agreed as nearly as 

 possible with these descriptions were selected. The condensed diagnos- 

 tic characters of the four "species" are as follows : 



Typical buddiana. Whole dorsum uniform pale pinkish brown. 

 Lateral bars solid and well marked. Caudal femora with but a faint 

 indication of the dorsal bar at the terminal third. 



Typical ferruginea. Whole dorsum ochraceous with the usual mark- 

 ings on the dorsum of the metazona. Lateral bars broken. Caudal 

 femora with distinct bar at the terminal third. 



Typical maculipennis. Dorsum of the closed tegmina and pronotum 

 sprinkled with blackish quadrate or subquadrate spots. Lateral bar 

 with the remains less sharply defined than in ferruginea. 



Typical texana. Dorsum suffused with blackish. Tegmina black- 

 ish with the veins dark. Caudal femora with the dorsum of the 

 genicular portion black. 



The number of specimens of the total of one hundred and six which 

 appeared to be typical of these forms were: buddiana, three; ferru- 

 ginea, ten; maculipennis, nine; texana, three, while eighty-one or over 

 seventy-five per cent, were typical of none. Of this remaining series 

 twelve share characters of buddiana, ferruginea and maculipennis, sixty- 

 six characters of ferruginea and maculipennis and three characters of 

 maculipennis and texana. 



When compared with three Shovel Mount, Texas, females the Ari- 

 zona females differ uniformly in the narrower fastigium, which is 

 usually more deeply excavated or at least appears to be so. When 

 the Arizona series of both sexes is examined there is seen to be con- 

 siderable variation in both sexes in the width of the fastigium, irrespec- 

 tive of locality or color phase, and in the degree of constriction of the 

 lateral carinae of the pronotum. Careful examination of the selected 

 typical females fails to show any difference in the facial angle, and the 

 shape of the lateral foveolse is of such variability that no reliance can be 

 placed on this character. The long type of foveolse, supposed to be 

 peculiar to the texana form, can be duplicated in specimens picked 

 haphazard from the series of the other three types, and moreover the 

 dark texana has as much variability in the few specimens available of 

 the form as one needs to convince them of the variability of this char- 

 acter. 



