144 Bulletin American Museum of Natural History. [Vol. XIII, 



154. Empidonax ridgwayi Sclater. 



Six specimens, Bonda, Aug. 27, Sept. 6-8, Oct. 7-24. 



155. Empidochanes cabanisi (Leotaud)? 

 Five specimens : Concha, Aug. 18 ; Bonda, Sept. 6, Jan. 20, 

 Feb. 27 ; Valparaiso, May 16. 



J 56. [Pyrocephalus rubinus (Bodd.}. 



Pyrocephalus rubineus SALV. & GODM. Ibis, 1879, 2O2 (Valle Dupar) ; ibid. 

 1880, 125 (Valencia).] 



157. Myiobius erythrurus Cabanis. 

 One specimen, Jordan, May n. 



158. Myiobius assimilis, sp. nov. 



Myiobius vidllotioides SALV. ' & GODM. Ibis, 1880, 125 (San Sebastian). 

 Not M. vieillotioides Lafr. 



Myiobius vieillotioides BANGS, Proc. Biol. Soc. Wash. XII, 1898, 176 (San 

 Francisco). Not M. vieillotioides Lafr. 



7ype, No. 72629, $ ad., Valparaiso (altitude 5500 feet), March 7, 1899 ; coll. 

 H. H. Smith. 



Above deep rufous slightly darker on pileum and nape ; concealed crest deep 

 golden ; rump band deep cinnamon rufous, much lighter than the back, but 

 much deeper than in M. vieillotioides ; below deep rufous, strongest over the 

 breast and fore neck, lighter on the abdomen and lower tail-coverts ; chin 

 dusky ashy suffused with rufous ; tail deep rufous like the back, shaded with 

 dusky for about the apical sixth, the dusky portion forming an ill-defined sub- 

 terminal band, the feathers being tipped with deep rufous ; the wing-coverts 

 rufous with blackish bases, the dusky portion almost wholly concealed by the 

 broad rufous tips ; quills, including outer primaries, rufous externally, the pri- 

 maries passing into dusky apically. Length, 133 mm.; wing, 69; tail, 60; 

 tarsus, 13 ; culmen, 15. 



The female does not differ appreciably from the male ; young birds differ 

 from the adult chiefly in wholly lacking the bright yellow crown patch. 



Myiobius assimilis is most nearly related to M. vieillotioides 

 Lafr, the type locality of which is Caracas, Venezuela, but differs 

 from it in being deeper rufous throughout, with very little of 

 the dusky shading on the pileum and nape so characteristic of M. 

 vieillotioides, and in having the tail almost wholly rufous instead of 

 mainly dusky, and with much less black on the remiges. 



This species is represented by 30 specimens, collected as fol- 

 lows : Valparaiso, 13 specimens, March 7-19 and April 4-15 ; 



1 Cf. Chapman, this Bulletin, VI, 1894, 42. 



