SPHINX. 193 



and detached, but reposes upon the breast. It is contained in a 

 subterranean cell. 



GROUP I. 



Size very large. Head large. Eyes large and salient. Tongue 

 nearly twice as long as the body. Palpi thick, ascending and. 

 pressed against the front. 



1. S. leucopheeata Clemens. 



Head, palpi, and thorax gray ; tegulre with a black line on the 

 superior margin. Abdomen grayish, with a black patch on each 

 side at the base and alternate black and whitish demi-bands. 

 Anterior wings gray, with a small black patch about the middle 

 of the base ; an indistinct blackish double line arises at the base 

 of the inner margin and extends to the origin of medio-central 

 vein, and two lines of the same hue cross the lower portion of disk 

 obliquely to about the same point ; a blackish wavy line, curved 

 toward the costa, and bordered beneath with pale gray, arises 

 about the middle of the inner margin and extends to the lower 

 part of disco-central nervule, whence it retreats indistinctly to the 

 costa ; a subterminal, angulated, abbreviated black line, bordered 

 irregularly with pale gray. A deep black streak in post-apical 

 interspace continued to the tip, and conspicuous black streaks at 

 the base of medio-central and posterior interspaces ; discal spot 

 obscure and whitish ; fringes gray. Posterior wings grayish, with 

 a black median band and broad black marginal band, with a space 

 on terminal margin from the middle to the inner angle, gray. 

 Beneath, thorax ash gray, abdomen white, with a few brownish 

 ventral spots. 



Texas. 



CLEMENS. 



GROUP II. 



Size large or moderate. The head moderate. The eyes small 

 and but moderately salient. The tongue one-third longer than the 

 body, or about as long or somewhat shorter. The palpi are thick 

 and slightly exceed the front, with which the hairs of the tip are 

 scarcely identified. 

 13 



