1907.] NATURAL SCIENCES OF rHILADELPIIIA. 41 



yellow. Cei3halic and median limbs of the general colors, imperfectly 

 annulate and sprinkled the darker on the lighter, the cephalic limbs in 

 the male cloudcil with ecru drab. Caudal femora with the genicular 

 region blackish, a distinct pregenicular annulus of pale wood brown 

 present, the lateral face with three oblique fasciae of the darker color, 

 the distal of which is the only one which clouds the ventral face to any 

 great ex'tent, in the male the lighter areas are almost bluish white; 

 caudal tibite naples j^ellow with the proximal portion clouded and the 

 genicular section and the tips of the spines blackish. 



Measurements. 



d 9 



Length of body, 17.8 mm. 30.5 mm. 



Length of pronotum, 4.2 " 6.4 " 



Length of tegmen 18.5 " 25.7 " 



Greatest width of tegmen 3.5 " 4.5 " 



Length of caudal femur, 10.2 " 14.5 " 



A series of four males and three females have been examined in addi- 

 tion to the types, one from Palmerlee (Schaeffer; September 5), the 

 others from Carr Canyon (Biederman; September 22, 24, October 8 and 

 28, 1905). The Palmerlee male is lighter in color than the four Carr 

 Canyon male specimens available; this not only being true of the 

 brown shades but of the disk of the wings as well, those parts being of 

 the same shade as in the female. One of the female paratypes is very 

 similar to the type, another is slightly paler and the third decidedly 

 paler with the color contrasts much reduced and in some cases absent. 

 The size appears to vary little, and in structure the chief variation 

 worthy of note is the degree of "blocking" of the dorsal portion of the 

 frontal costa. The fuscous band of the wing is carried nearer to the 

 internal margin of the wing in some specimens than in others. 



Trimerotropis fascicula McNeill. 



Carr Canyon. Huachuca Mountains, August, 1905 (Skinner), 4 c?. 

 Palmerlee (Schaeffer), August 7, 1905, 1 c?. 



These specimens agree very well with McNeill's description, except 

 that they are slightly larger with distinctly longer tegmina, a feature 

 of variation well exhibited by series of the closely related T. bnineri^ 

 This form is extremely close to brimeri, appearing somewhat slenderer 

 and with a narrower fastigium and wider tegminal bars. 

 Trimerotropis alliciens Scudder. 



Carr Canyon, Huachuca Mountains, August, 1905 (Skinner), 1 cJ*, 1 

 9 . September 24 and 28, October 8, 1905 (Biederman), 1 d,3 9 . 

 Palmerlee, August 7, 1905 (Schaeffer), 1 9 . 



