121 



AMERICAN GAD-FLY. 



Tabanus arriericanus Forst. 

 Exhibit: Adult. 



THE GRAY-STRIPED GREEN-HEAD. 



Tabanus lineola Fab. 

 Exhibit: Adult and figure. 



THE BLACK GAD-FLY. 



Tabanus at rains Linn. 



Exhibit: Larva, adult, figure, and figure of parasite Plianurm 

 tabanivorus Ashm. 



THE GREENHEAD. 



Tabanus costalis Wied. 



Exhibit: Adult. 



TABANUS EXTJL C. S. 



Exhibit: Adult. 



TABANUS PUNCTIFER 0. S. 



Exhibit: Adult. 



TABANUS CINCTUS Fab. 

 Exhibit: Adult. 



MEXICAN BOT-FLY. 



Tabanus mexicanus Linn. 



Exhibit: Adult. 



THE BLACK-STRIPED GAD-FLY. 



Tabanus nigrovittatus Macq. 



Exhibit: Adult. 



THE BLACK-STRIPED EAR-FLY 



Chrysops vittatus TVied. 

 Exhibit: Adult and figure. 



CHRYSOPS ATROPOS O. S. 



Exhibit: Adult. 



CHRYSOPS HILARIS O. S. 



Exhibit: Adult. 



THE STABLE FLY. 



Stomoxys calcitrans Linn. 

 For special article see Howard, Proc. Wash. Acad. Sci., v. II, pp. 

 577-579, fig. 27, 1900. 



Exhibit: Adult and figure. 



THE HORSE BOT-FLY. 

 Gastrophilus equi Fab. 

 Exhibit: Eggs, larva, puparia, adult, and figure. 



THE "CHIN" FLY. 



Gastrophilus nasalis Linn. 

 Exhtbit: Adult. 



