384 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
This species ranges from southern Maine to Florida. The larvae feed 
on various species of pine. It is rare in the Northeastern States, but 
not uncommon in the Southeastern States. Its life history is similar 
to that of C. regalis. 
FIGURE 74.—A, Larva of Citheronia regalis; B, larva of Hacles imperialis. (A, 
Courtesy Conn. Agr. EB rpt. Sta.) 
The imperial moth (Lacles imperialis (Drury) ) has a wing expanse 
of 4 to 6 inches. The head is yellow, and the thorax, body, and wings 
bright yellow with pale, lilac markings. The full-grown larva is about 
4. inches long, the head is about one- half as wide as the body, orange 
yellow with the sides green, and the body is generally green, sometimes 
tinged with red or brown, and thinly clothed in long whitish hairs. 
Each segment has five or six thorny, yellow tubercles, or warts, and 
ion 
