NOTES ON THE GENERIC AFFINITIES OF CERTAIN 

 CICADELLIDAE (HOMOPTERA). 



With Descriptions of a New Genus and Two New Species.* 



Herbert Osborn. 



The following notes are based in considerable part on 

 material collected some years since when engaged upon a study 

 of the Leaf-hoppers affecting Cereal and Forage crops the 

 results, especially those bearing on the economic problems 

 involved, appearing in Bulletin 108 of the New Series of the 

 Bureau of Entomology. A considerable amount of material 

 illustrating the distribution and habits of species not directly 

 connected with cultivated crops was accumulated but detailed 

 study of this material has been delayed for various reasons but 

 especially by the pressure of other duties connected with my 

 university work. 



It is hoped that in time a paper dealing more extensively 

 with our American Leaf -hopper fauna may be possible but in 

 the meantime it seems desirable to present some observations 

 on the generic affinities of certain groups and to publish the 

 descriptions of new forms so they may be available to other 

 students of the group. 



. I am indebted to members of the staff of the U. S. Bureau of 

 Entomology for numerous favors, especially to the lamented 

 Prof. Webster, who was chief of the Division of Cereal and 

 Forage Crops at the time the collections were made, and to 

 Dr. L. O. Howard for his interest and encouragement. The 

 figures presented are from the skillful hands of Miss Charlotte M. 

 King and Mr. J. D. Smith and are duly credited in each case. 



* Contributions from the Department of Zoology and Entomology of the 

 Ohio State University No. 59. 



Published with permission of the Secretary of the U. S. Dept. of Agriculture. 



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