CONTRIBUTIONS 



DEPARTMENT OF 



Zoology and Entomology 



Iowa State College of Agriculture 

 and Mechanic Arts. 



A Study of the Genus Clastoptera. E. D. Ball. 

 Observations on the Cicadid^ of Iowa. Herbert Osborn. 

 Biologic Notes on Certain Iowa Insects. Herbert Osborn and 

 C. W. Mally. 



Contributions to a Knowledge of the Thripid^ of Iowa. 

 Alice M. Beach. 



Note on a New Species of Phlceothrips, with Description. 

 Herbert Osborn. 



I Reprinted from the Proceedings of the Iowa Academy of Sciences, 1895, Vol. Ill il896).l 



DES MOINES: 



F. R. CONAWAY, STATE PBINTEH. 



1896. 



