Bangs — Notes on Birds from Western Colombia. 161 



wing, but very different from the bright yellow shoulder of the Central 

 American bird. All three skins in the present collection (two adult males 

 and one adult female) agree in tbis respect and are like one adult male in 

 my collection from Rio Lima, Colombia, and several " Bogota" skins. In 

 an enormous series of true C. gyroloides from north of the Isthmus of 

 Panama, not a single adult specimen but shows the distinct yellow 

 shoulder. 



Atlapetes crassus sp. nov. 



Type from 8an Antonio, western Colombia, altitude 5,800 feet, adult 6% 

 No. 20024, coll. of E. A. and 0. Bangs. Collected Dec. 11, 1907, by 

 M. G. Palmer. 



Characters. — A large species with a heavy bill almost as stout as in 

 Lysurus, dark olive above, bright yellow below, and witb the crown 

 tawny olive. 



Color. — Central part of crown to occiput tawny-olive; sides of crown 

 black ; cheeks dusky brown ; rest of upper parts blackish olive ; wings and 

 tail dusky, edged with dull olive; tbroat cbrome yellow ; becoming brighter 

 more gamboge along middle of belly; sides, flanks ami under tail coverts 

 olive green ; bend of wing bright yellow ; lining of wing yellowish white. 



Measurements. — Type, adult c? : wing, 78; tail, 79; tarsus, 25.5; ex- 

 posed culmen, 16.5. 



Remarks. — I can find no described species of Atlapetes, Lysurus or Bu- 

 arremon that appears to come at all close to the present bird, and while 

 it is possible I have overlooked some name that may apply to it, I do not 

 think I have. 



