SPHINGID^. 3 



of teeth or pecfciuations {x>cctc.n, a comb) on those organs. 

 These pectinations, which look like solid teeth, are really 

 composed of tufts of short bristles arranged in the form of a 

 horseshoe, and incurved at the tips, so that the bristles 

 touch at the point of the tooth and give the appearance of 

 solidity. 



Genus 1. SMERINTHUS. 



Antennae thickening gradually from the base to considerably 

 beyond the middle, then tapering to the apex, but without a 

 recurved bristle; in the male regularly pectinated on the 

 lower side with a double row of tufts of bristles. Fore wins's 

 with the hind margin broad, scalloped, or bluntly angulated. 

 Thorax and abdomen stout. Proboscis or sucking trunk very 

 short, or even absent. 



Larv.e green, roughened with minute raised dots, head 

 triangular, sides with oblique stripes, twelfth segment with a 

 prominent horn. 



PuP^ thick, blunt, rounded. Subterranean, but usually 

 close to the surface. 



1. S. ocellatus, L. — Expanse 3 to ^ inches. Rosy 

 brown clouded with darker brown ; hind wings pink, with a 

 blue and black ocellus. 



Shaft of the antennge whitish, pectinations yellowish or 

 reddish, prominent in the male; thorax very stout, pale 

 brown, upper or dorsal portion occupied by a sharply defined 

 blotch of rich dark brown ; abdomen stout, pale brown ; leo-s 

 blackish brown. Fore wings thick and strong, with the 

 costal margin nearly straight for three-fourths of its length, 

 thence strongly rounded to the apex, which is pointed; hind 

 margin rounded, except below the apex and above the anal 

 angle, where in each case it is rather hollowed ; dorsal margin 



