Vol. Xin Brewster, Notes on Certain Flycatchers. ic^7 



1895 J 



form as Procnias, this organ being very susceptible to modifi- 

 cations dependant on food or mode of feeding. 



In my previous paper I said that the differences between the 

 MacropterygidjE and the other Swifts were as great as those 

 between the Crows and Swallows ; in this I am prepared to go 

 farther and to say that they are greater than those existing 

 between any two families of Passeres with which I am acquainted. 



fvm II I ]v ma I if ur 



1 2 3 



Explanation of Figures. 

 Deep plantar tendons of i, Tackornis gracilis ; 2, Cha-tura pdagica ; 

 T, Macrofteryx coronata ; 4, Florisuga mellivora. 



■ ' Proximal end of left tarsus of 5. Microfus afus; 6, Chcrtura felagica ; 

 7. Cv/seloides niger; 8, Campylopterus kemileucurus ; 9, Macrofteryx 

 coronata ; 10, Tachornis gracilis. 



NOTES ON CERTAIN FLYCATCHERS OF THE 

 GENUS EMPIDONAX. 



BY WILLIAM BREWSTER. 



Green-crested Flycatcher. Empidonax Virescens (Vieill.). 

 The name Empidonax acadicus has been so long established 

 and so -enerallv used that despite its obvious inappropriateness 

 it is indeed a ^ity that it must be discarded. But there is 

 apparently no alternative, as can be shown in a few words. The 



