180 LEPIDOPTERA OP NORTH AMERICA. 



Food-plants. Jussieua erecta (decurrens) ? 



S. America ; Mexico ; West Indies ; Southern U. States. 



CLEMENS. 



The following species approaches P. vitis so nearly in its orna- 

 mentation, that I am much disposed to place it as a variety. But 

 for the present, perhaps, it is better to represent it as distinct. 



6. P. jussieuae Hiibner. Sphinx fasciatus Sulz. 



Pale buff, tinged with reddish. Head and thorax with a dorsal 

 olivaceous green line. Thorax with two broad olivaceous green 

 stripes. Abdomen with two black spots at the base on the sides, 

 and two dorsal olivaceous green stripes. Anterior wings oliva- 

 ceous green, costa reddish-brown, with a discal mark, a transverse 

 streak near the base, with two connected bands along the middle, 

 and the veins pale buff; exterior margin reddish-brown. Poste- 

 rior wings pale-green, rosy along the inner margin and exterior 

 half of terminal border, with two black spots near the middle of 

 inner margin, and a sub-terminal black band ending in short lines, 

 and a dusky patch at inner angle. 



S. America ; West Indies ; Mexico. 



CLEMENS. 



PACHYLIA WALKEK. 



The body is large and thick. The head is large, free and promi- 

 nent ; the front smooth, long, broad and elliptical : the palpi ascend 

 to its level; the eyes are large or very large, salient and hemi- 

 spherical ; the tongue strong and thick, but when unrolled extends 

 only to about the third abdominal segment; the antenna? are about 

 as long as the thorax, with a long hook, compressed laterally. 







The thorax is smooth, immaculate, thick and cylindrical, well ad- 

 vanced in front of the base of anterior wings, and tapering on the 

 sides to the head. The abdomen is large, nearly cylindrical or 

 oblanceolate, generally rather more than twice the length of the 

 thorax. The wings are about equal in length to that of the body, 

 or somewhat longer, and about twice and a half longer than broad 

 across the inner angle ; the hind margin of the anterior entire, 



