114 IOWA STUDIES IN NATURAL HISTORY 



Proceedings of the Academy of Natural Sciences of Philadelphia, 1841. 

 Proceedings of the California Academy of Sciences, San Francisco, I, 1864. 

 Proceedings of the Entomological Society of Philadelphia, I, 1861-VI, 1867. 

 Proceedings of the Essex Institute, Salem, 1848-1870. 

 Proceedings of the United States National Museum, "Washington, D.C., I, 



1878. 

 Proceedings of the Zoological Society of London, London, 1832. 

 Psyche, Cambridge, I, 1874. 



Eeport of the Entomological Society of Ontario, Toronto, 1871. 

 Eeport of the Peabody Academy of Sciences, Salem, I, 1868-VI, 1873. 

 Transactions of the American Entomological Society, Philadelphia, 1867. 

 Transactions of the Chicago Academy of Sciences, Chicago, I, 1867. 



