Insects Affecting Sweet Potatoes 149 



FlGtTBE 18. — Present known distribution of the sweet potato 

 weevil in the southern United States. 



From observations made by authorities, very little 

 egg-laying takes place during the winter, but the adults 

 are active on warm days and are frequently found 

 crawling about and feeding on stored potatoes. In 

 the spring and in the field the beetles become much 



FrOTTRE 19. — ' Sweet potato, nearly fresh, showing exit holes and 

 feeding punctures of sweet potato weevil toward stem. Note outer 

 end scarcely attacked. Sample from Louisiana. 



