INDEX TO TOPICS. 



PAGE, 



Introduction, . . . . . . . . , . .3 



Eggs and Egg-laying, 4 



Ivarva and Pupa, .......... 5 



Field Habits of the Adults, 6 



Anatomy of Tabanus sulcifrons, ........ 9 



Males compared with FemaJes, ....... 13 



Artificial Remedies, . . . . . . , . . .14 



Natural Enemies, .......... 15 



Bibliography of Literature, ........ 15 



Catalogue of Species, ......... 19 



A Systematic Treatise of Ohio Specifs, ...... 29 



Explanation of Terms, ....... 29 



Family Characters, ......... 30 



Key to the North American Genera, . . • . . . 31 



