68 PROCEEDINGS OF THE ACADEMY OF [March, 



Length of Length of Length of Length of 

 9 body. pronotum. tegmen. caudal femur. 



Sanderson, Texas 35 5.7 27.8 20.2 



Marathon, Texas 40.5 6 ■ 29.8 21 



Marathon, Texas 51 7.3 35.8 25.4 



Persimmon Gap, Texas 37 5.7 29 20.4 



Persimmon Gap, Texas 41.2 5.9 31.6 21.9 



Lost Mine Peak, Texas 40 6.3 31.5 21.8 



Lost Mine Peak, Texas 43.5 6.6 32.5 24 



Pine Mountain, Texas 40.5 6.1 29.5 21.5 



Pine Mountain, Texas 45 6.7 31.5 23 



El Paso, Texas, allotype 45 6.5 34.4 ~ 



Franklin Mountains, Texas . . .' 48.5 7.2 35 23.7 



Jemez Hot Springs, New Mexico.... 36.8 6.4 3C.6 22 



Jemez Hot Springs, New Mexico. . . .43.6 6.5 32.2 23 



Rock House Canyon, Arizona 42 6.5 32.5 23.5 



Rock House Canyon, Arizona 44.5 6.5 32.5 22.8 



Carr Canyon, Arizona 40 6.5 32 23.5 



Carr Canyon, Arizona 46.5 7.5 34 24.5 



Mud Springs, Arizona 40.5 6.2 29.5 21.5 



Mud Springs, Arizona 41 6.2 32 22.8 



Prescott, Arizona 32.2 5.5 26.2 19 



Prescott, Arizona 36 6 30 21.2 



Lerdo, Durango, Mexico, para/ype. . .45.3 7.4 35.4 24.7 



From these figures, which have been taken from extremes in 

 the representations where more than two of each sex are present, 

 it is evident that individuals are of minimum size at the higher 

 elevations and at the periphery of the range. The Sanderson 

 material, which, while taken at a low elevation, is from the eastern 

 known limit of the range, and that from Mud Springs, Prescott 

 and Mount Tritle at the western limit and quite elevated, present 

 the minima, while specimens from Persimmon Gap, another quite 

 eastern locality, are quite close in size; Pine Mountain, another 

 quite elevated station, also presents uniformly small individuals. 

 The optimum of size is developed in the Eastern Desert region 

 (Franklin Mountains, Aden and Lerdo). 



Color Notes. — The greenish phase of this species, which we have 

 never seen adult, was named by Cockerell.^' The description 

 of immature individuals of both color phases has been given else- 

 where by the same author. ^^ From the present material the 

 principal individual color variations appear to be: a fluctuation 

 in depth of the dorso-median dark bar of the head, pronotum and 

 proximo-sutural section of the tegmina; an occasional dark livid 

 suffusion of the ventral half of the lateral lobes of the pronotum; 

 a weak maculation of the tegminal intercalary area and some 

 instability in the strength of the femoral markings. The dorsal 

 bar ranges from nearly solid, through a type with paler center to 



" Proc. Davenp. Acad. Sci., ix, p. 24, (1902). 

 18 Psyche, ix, p. 430, (1902). 



