The Bulletin. 



27 



Adult. — The adults of both kinds of Horn Worms are dull, grayish 

 hawk moths with stout, narrow wings and a long, slender tongue. 

 Both moths are strong flyers, and feed upon the nectar (honey) of 

 long-tubed flowers, such as four o'clocks and jimson weed. The 

 moths of the Southern Horn Worm (Fig. 13) may be distinguished 



Fig. 13.— Adult Moth of Southern Horn Worm, natural size. 

 {Photograph by the author.) 



by the presence of a small group of white spots at the base of the fore 

 wings and a small though conspicuous white spot near the middle 

 of the front wings, close to the front margin. The hind wings are 

 crossed near the middle by an obscure blackish band. The abdomen 

 is marked with six bright orange-yellow spots. 



The adult of the Northern Horn Worm (Fig. 14) lacks the con- 

 spicuous white spots at the base of the fore wings and the single 



Fig. 14. -Adult of Northern Horn Worm, natural size. 

 (Photograph by the author.) 



