Tachinidse, Fissicorn 



Talarocera nigripennis Wied. . . . 

 Townsendia, gen nov. (Asilidse). 



Townsendia minuta n. sp 



Toxotrypana curvicauda Gerst . 



171 

 171 

 107 

 108 

 117 



W 



Williston, S. W., Bibliography of North American Dipterology. 



Williston, S. W., Bibliography of North American Diptera 



Williston, S. W., Fissicorn Tachinidas 



Williston, S. W., Notes on the Mandible of Ornithostoma 



Williston, S. W. , On the Skull of Ornithostoma 



Williston, S. W., Two Remarkable New Genera of Diptera. . . . 

 Windwills, Theoretical and Measured Pumping Power of 



129 



1 99 

 171 

 61 



107 

 93 



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