BIRDS OF Is^ORTH AND MIDDLE AMEEICA. 37 



s. Pileum 3-striped and a gray or white super- 

 ciliary stripe, or else {Arremon, part) 

 pileum and sides of head uniform l)lack; 

 throat and alidomen white. 

 t. Sides of head grayish, relieved Ijy a nar- 

 row postoeular streak of lilack or Ijrown; 

 supercdliary stripe gray; tail olive-green, 

 like back and wings. Arremonops (p. 445) 

 n. Sides of head black, sometimes relieved 

 by a white superciliary stripe; tail more 

 or less dusky or slate color. 



Arremon (p. 454) 



ss. Pileum uniform chestnut; nu superciliary 



stripe; throat dusky; alxlomen yellow 



or olive-green Lysurus (p. 457) 



qq. Tail longer than wing, or else {Buarremon, part) 

 very little shorter, and the bill very nar- 

 row, with mandil )ular tomium straight to the 

 prominent subl^asal tooth, and maxilla with 

 distinct subterminal tomial notch. 

 r. Bill stouter, with mandible relatively deeper 

 and shorter (depth at gonydeal angle nearly 

 if not quite etjual to half length of gonys, 

 and nearly equid to depth of maxilla in 

 front of nostril ) : under i)arts at least partly 



yellow ^ Atlapetes (p. 459) 



rr. Bill more slender, with mandible relatively 

 shallower and longer (depth at gonydeal 

 angle ecjual to about one-third length of 

 gonys and nmch less than depth of maxilla 

 in front of nostril); under parts white 

 ( except sides, etc. ) , witli or without a lilack 



baud across chest Buarremon (p. 464) 



pp. Tibial feathers long, covering tibio-tarsal joint, 

 clear yellow, in consjDicuous contrast with gen- 

 eral dark gray and black col^r of jilumage. 



Pselliophorus (i>. 469) 

 oo. Eighth })rimary shorter than secondaries. 



Pezopetes (p. 471) 



Genus HESPERIPHONA Bonaparte. 



HesperipJiona Bonaparte, Compt. Rend., xxxi, 1850, 424. (Type, FrlngUla vesper- 



tina Cooper.) 

 Hesperophona (emendation) Coues, Bull. Xutt. Orn. C'lul). vii, Oct., 1882, 250. 



Large, long-winged, short-tailed, short-legged, and heavr-billed 

 Fringillida3, with the wing nearly twice as long as the tail and pointed 

 (ninth or eighth and ninth primaries longest) ; the tail slightly emargi- 

 nate; tarsus not more than one-fifth as long as wing, and little, if any, 

 longer than oulmen: adult males yellowish and black, with white on 



^ Except in some South American species. 



