192 LEPIDOPTERA OF NORTH AMERICA. 



or whitish. Thorax with a black line in front extended on the 

 sides to tegulce, where it is bordered below with whitish. Abdo- 

 men brownish gray, with a lateral black angulated band on each 

 side, sometimes a black stripe with dull yellowish spots. Anterior 

 wings gray or hoary, more or less varied with green and pale 

 brownish, with a black streak along the base of inner margin, 

 several black angulated lines crossing the disk and angulated 

 black lines crossing the base of the nervules ; discal spot grayish, 

 adjacent to which is a greenish-brown median patch; black streaks 

 at the base of medio-central and posterior interspaces and blackish 

 circlets on the ends of posterior nervules, with a black curved sub- 

 apical line. Posterior wings nearly uniform blackish brown, with 

 a whitish patch above the interior angle crossed by two or three 

 black lines ; sometimes with faint blackish transverse bands. 



Collection Acad. N"at. Sciences, Philadelphia, and Mr. \V. H. 

 Edwards, of Newburg. 



South America; Honduras. 



CLEMENS. 



SPHINX LINN. 



The size is very large, large, or moderate. The body is long, 

 tapering, and cylindrical. The head free and prominent, the front 

 broad, long, and conical. The antennae prismatic, a little longer 

 than the thorax, with a short hook and seta. The tongue variable. 

 The thorax advanced and tapering on the sides to the head. The 

 abdomen somewhat more than twice longer than the thorax and 

 sometimes nearly thrice. The wings are long and narrow ; the 

 length of the anterior exceeding that of the body, and about one- 

 third as long as they are broad across the inner angle, with the tip 

 acuminated, the hind margin entire and usually very obliquely 

 convex, with the inner angle rounded and the inner margin nearly 

 straight or slightly concave. The legs are moderately long and 

 stout, the hind tibiae with four very long spurs. 



Larva. The head is large, semi-oval, and flattened in front. 

 The body is almost uniformly cylindrical, smooth, and obliquely 

 banded on the side, with an arching caudal horn, and the thoracic 

 segments somewhat folded. The tongue-case of the pupa is short 



