PASSERES— SYLVICOLIDAE— DEISDROIUA OCGIDENTALIS. 201 



DENDROICA OCGIDENTALIS (Towus.). 

 Western "Warbler. 



Sylvia occidentalism Towns., Jonr. Acad. Nat. Sci. Pbila., vii, ii, 1837, 190 (Columbia 



River). 

 Dcndroica occidentalis, Bd., Birds N. A., 1858, 268.— Coop. & Suckl., P. R. R. Rep., 



xii, pt. ii, 18C0, 178.— Bd., Rev. Am. Birds, i, 18G5, 183.— Coues, Proc. 



Acad. Nat. Sci. Phila., 1860, 69 (Fort Whipple).- Coopek, Birds Cal., i, 



187:i, 92.— Coues, Key N. A. Birds, 1872, 97— Bd., Brew., & Ridg., N. a. 



Birds, i, 1874, 266, pl.'sii, f. 5. 



The Western Warbler was met with at the same time and place, and 

 under precisely the same conditions, as the last species, and at this season 

 the habits of the two are so alike that at the distance at which they were 

 usually seen it was impossible to distinguish them with anything hke cer- 

 tainty. Indeed, the two species associated together, and were found in the 

 same trees. 



PEUCEDRAMUS, Coues, nov. gen. 



Type. — Si/lria oUnicea, Giraud. 



" Geueral aspect of Dendroica. Tougue mucb as iu tbat geuus, but larger, with 

 levolute edges, cleft tip, and laciniate for some distance from the end ; wings elon- 

 gated, half as long again as the tail (iu Dcndroica but little longer than the tail), reach- 



