378 PROCEEDINGS OF THE ACADEMY OF [July, 



mars brown extending from the dorso-caiiclal margin of the eye to the 

 caudal margin of the pronotum, margining the disk on the latter; eyes 

 and antennae walnut brown. Pronotum with the disk seal brown, 

 except for the area between the supplementary carinae which is choco- 

 late.' Tegmina vandyke brown, seal brown proximad in the region of 

 the humeral and discoidal veins; area between the mediastine and 

 humeral veins proximad with a bar of whitish. Venter and abdomen 

 naples yellow, stippled on the sides and apex of the abdomen with 

 brownish. Cephalic and median limbs thickly sprinkled with walnut 

 brown on a paler ground. Caudal femora with the dorsal half with 

 ecru drab as a base color, ventral half straw yellow, genicular region 

 seal brown, bar at a third the length from the tips seal brown, distinct 

 and solid dorsad, weak ventrad; dorsal face with the proximal half 

 washed with seal brown and the dorsal half of the lateral face 

 clouded with one extensive proximal maculation and a smaller median 

 one. Caudal tibiae glaucous blue, blackish at the genicular region and 

 pale between this and the glaucous portion, spines with their distal 

 halves black. 



Measurements. 



Length of body, 14.5 mm. 



Length of pronotum, 2.7 " 



Length of tegmen, 11.5 



Length of caudal femur, 8.7 " 



The unique type "v^as found on ground devoid of vegetation but 

 covered with needles in the dense pihon and juniper forest. No other 

 Orthoptera were noticed in this locality. 



ORPHULELLA Giglio-Tos. 

 Orphulella oompta Scudder. 



This species was exceedingly abundant at Yuma, on irrigated ground 

 along the Colorado River south of the town. On July 28 a series of 

 twenty-six males, sixteen females and two nymphs was taken. 



Of this series about half is in the green phase, while the remainder is 

 divided between a full brown phase and one possessing both green and 

 brown in its make-up — a mixed phase. Only one, a female, shows 

 any tendency toward purphsh on the tegmina, and in this case it is not 

 strongly marked. There is a considerable amount of variation in size 

 in both sexes, and also in the form of the angle and depth and extent 

 of the excavation of the fastigium. 



^ This bar is very faintly indicated on the head. 



