110 IOWA STUDIES IN NATURAL HISTORY 



Megathymus neumoegeni subsp. stephensi Skinner, Ent. News xxiii, 126, 



1912. 

 Barnes & McDunnough, Contributions I, (5), 44, 1912. 

 Southern California, Texas. 



7. MEGATHYMUS ARYXNA 



Megathymus aryxna Dyar, Jn. N. Y. Ent. See. xiii, 141, 1905. 

 Arizona; July, September and October. 



8. MEGATHYMVS POLINGI 



Megathymus polingi Skinner, Ent. News xvi, 232, 1905 ( $ only, fide B. & 



McD.). 

 Skinner, Trans. Am. Ent. Soc. xxxvii, 207, 1911. 

 Arizona, September. 



