1921] Butterflies of North Carolina 79 



16. Under side of wings with numerous irregular black cross bars. 



Banded Elfin {Thecla niphon). 



16. Under side of wings not as in niphon 17. 



17. Under side of wings uniform rust red on its outer half. 



Brown Elfin {Thecla augustus). Polk Co. 



17. Under side of hind wings with pale scales on its outer half giving it a hoary 



appearance 18. 



18. Upper side of forewings grayish brown, under side of hind wings fairly uni- 



form in color Hoary Elfin {Thecla irus). Mountains. 



18. Upper side of forewings reddish brown on its outer portion, under side of hind 

 wings with a pale outer portion and a dark inner portion, these sharply 

 defined from one another. 



Henry's Elfin {Thecla henrici). Polk and Wake Counties. 

 Note. In the preceding keys no distribution is given except of those species 

 which are apparently confined to a part of the state, the others are known to be 

 at least fairly well distributed throughout the state. 



The sixth family of butterflies, the Hesperidae or Skippers, is left for another 

 paper, the species being both numerous and hard to discriminate. 

 Raleigh, N. C. 



