170 



LEPIDOPTERA. 



Outis. 



Hippalus. 



Epigena. 



Drusius. 



Albociliatus. 



Melon. 



Var. arizonensis. 

 Dorus. 

 Lycidas. 

 Cellus. 



Pseudocellus. 

 Euribates. 

 Tityrus. 

 Zestos. 

 Exadeus. 

 Idas. 

 Proteus. 

 Simplicius, 

 Eurycles. 



Albofasciatus. 

 Dorantes. 



Var. rauterbergi 

 Urania. 

 Lilea 



Batabano. 

 Amyntas. 



Araxes arizonensis. 

 Yuccae. 



Var. coloradefisis. 

 Cofaqui. 

 Streckeri, 

 Ursus. 

 Neumoegeni. 



Var. aryxna. 

 Polingi. 

 Smithi. 

 Stigmaticus. 



A Key to the Larger North American Hesperidce . 



Tails to the hind wings more than one-eighth inch in length 27. 



Tails to the hind wings less than one-eighth inch in length or 

 absent 2. 



