54 



GENERAL ZOOLOGY 



They are dressed, for the most part, 



in quiet olive and brown tints, and fly J 



by day. Their larvae are large, naked //. 



4 



caterpillars, often with a 

 curved horn near the pos- 

 terior extremity. They 

 have the habit of resting 

 with the head and front 

 of the body raised in 

 the air. In this attitude 

 they have been fancied 

 to resemble the Egyptian 

 sphinx. It has been 

 thought by some zoolo- 

 gists that this position is 

 assumed as a terrifying 

 attitude. The tobacco- 

 worm is the larva of the 



FIG. 33. Metamorphosis of Sphinx-Moth. 

 Reduced 



