SNOW : DIPTER4 OF KANSAS. 213 



Family Tabanid^ (horse-flies). 



Chrysops sequax Will. Logan county, 

 cestuans Wulp. Clark county, 

 vittatus Wied. 



fulvaster O. S. Clark county. 

 Silvius 4-vittatus Say. Morton and Hamilton counties. 



pollinosus Will. Morton and Clark counties. 

 Tabanus exul O. S. Douglas and Sedgwick counties, 

 atratus Fabr. Clark county, 

 fulvulus Wied. Douglas county, 

 melanocerus Wied. Douglas county, 

 venustus O. S. Douglas, Riley and Morton counties. 



Family Asilid.e (robber-flies). 



Microstylum guenelodes Loew. Finney county. 



Ospriocerus asacus Wied. Hamilton, Morton, Logan and Clark counties. 



asacides Loew. Hamilton and Morton counties. 

 Stenopogon consanguineus Loew. Hamilton, Morton and Clark counties. 



a?acidinus Will. Hamilton, Morton, Wallace and Clark counties. 

 Stichopogon trifasciatus Say. Douglas, Hamilton, Morton, Wallace and Clark 



counties. 

 Taracticus octopunctatus Say. Douglas county. 

 Deromyia miscellus Loew. Douglas county. 



angustiventris Macq. Wallace county. 



platyptera Loew. Douglas, Sedgwick and Wallace counties, 

 angustipennis Loew. Wallace, Logan and Sedgwick counties. 

 Saropogon adustus Loew. Hamilton, Morton and Wallace counties. 



combustus Loew. Hamilton, Morton, Wallace, Clark and Finney 



counties. 

 Atomosia ruflpes Macq. Morton county. 

 Dasyllis tergissa Say. Douglas county. 

 Laphria canis Will. Douglas county. 

 Lampria rubriventris Macq. Wallace county. 

 Laphystia sexfasciata Say. Douglas and Clark counties. 

 Triclis togax Will. Douglas county. 

 Promachus bastardii Macq. Douglas county. 



vertebratus Say. Douglas, Sedgwick and Wallace counties, 

 fitchii O. S. Hamilton, Morton and Clark counties, 

 albifacies Will. Hamilton and Morton counties. 

 Erax aestuans Linn. Morton and Riley counties. 



cinerascens Bell. Douglas, Hamilton, Morton, Wallace, Finney and Clark 



counties, 

 varipes Will. Hamilton, Morton and Wallace counties, 

 leucocomus Will. Wallace county, 

 stamineus Will. Clark county, 

 tricolor Bell. Finney and Wallace counties. 

 Proctacanthus milbertii Macq. Douglas, Wallace, Logan and Clark counties. 



philadelphicus Macq. Hamilton and Morton counties. 

 Asilus sericeus Say. Hamilton and Morton counties. 

 Rhadiurgus cirro-plaque Will. Finney and Morton counties. 



