APR 24 1.9 :t. 



Bulletin 



OF THE 



Illinois State Laboratory 



Natural History 



Urbana, Ii^linois, U. S. A. 



STEPHEN A. FORBES, Ph.D., LL.D. 

 Director 



Vol. XII. March, 1916 Article II. 



A classification of the lepidoptera based on 



CHARACTERS OF THE PUPA 



BY 



Edna Mosher, Ph.D. 



