ir.] CH^EROCAMPA ELPENOR. 55 



an inch in length, they go through their first moult. 

 In their second stage (Fig. 41), they have two white lines, 

 stretching along the body from the horn to the head ; 

 and after a few days (Fig. 42), but not at first, traces 

 of the eye-spots appear on the fourth and fifth segments, 

 shown by a slight wave in the upper line. After 



FIG. 43. Chaerocampa elpenor. Third stage. 



another five or six days, and when about half an 

 inch in length, our caterpillars moult again. In their 

 third stage (Fig. 43), the commencement of the eye- 

 spots is more marked, while, on the contrary, the lower 

 longitudinal line has disappeared. After another moult 

 (Fig. 44), the eye-spots are still more distinct, the white 



FIG. 44. Chterocampa elpenor. Fourth stage. 



gradually becomes surrounded by a black line, while in 

 the next stage (Fig. 45) the centre becomes somewhat 

 violet. The white lines have almost, or entirely disap- 

 peared, and in some specimens, faint diagonal lines make 

 their appearance. Some few assume a brownish tint, 

 but not many. A fourth moult takes place in seven 



