BIRDS OF NORTH AND MIDDLE AMERICA. 803 



back grayer; tail more ocherous orbuffy brown; larger (wing of male 92, tail()9, 



exposed culmen 22, tarsus 25). (Trinidad.) Attila wighti (extralimital) « 



m. Back and scapulars more or less rufescent brown (sometimes greenish olive on 

 upper back only); tips of greater and middle wing-coverts brown or nifescent. 

 b. I'nder i)arts clay color or brownish buff. (Colombia.) 



Attila rufipectus (extralimiUd)b 

 bb. Under parts witli more or less of white or yellow. 



c. Bill smaller (exposed culmen 19-21 mm.) and more slender; ])ileum without 



streaks. (Colombia.) Attila parvirostris (extralimital)'' 



cc. Bill larger (exposed culmen 21.5-27.5 ram.) and relatively stouter. 



(1. Whole chest uniform gray; upper back and hindneck olive-green, })ileum 



deep gray. (Southeastern Costa Rica.) Attila tephrocephalus (p. 804) 



(Id. Chest not gray, or else the gray much paler and more or less streaked; 

 upper back and hindneck not olive-green or else pileum also olive-green. 

 {Attila citreopygus.) 

 e. Averaging larger, with relatively smaller h\\\ and feet; color of under parts 

 darker, with more or less of yellow on chest and sides (rarely wdiolly yel- 

 low below) or else the chest more distinctly streaked; color of back, etc., 

 darker or else more cinnamomeous. 

 /. General color of upper parts darker or browner; tail more or less exten- 

 sively brown. 



/). Back, etc., more olive-brown (sometimes becoming greenish olive 

 or nearly olive-green on upper back, hindneck, and pileum); 

 rump and upper tail-coverts purer yellow; tail darker (more 

 extensively brown); smaller (male averaging wing 89.9, tail 

 72.4, exposed culmen 2.3.1, tarsus 24.4; adult female, wing 84.9, 

 tail G7.4, exposed culmen 22.6; tarsus 24.5). (Panama to Nica- 

 ragua.) Attila citreopygus citreopygus (p. 805 ) 



hh. Back, etc., more russet brown, never becoming greenish olive on 

 upper back, etc.; rump and upper tail-coverts more ochery 

 yellow; tail lighter (more extensively cinnamomeous); larger 

 (male averaging wing 94.8, tail 77.3, exposed culmen 25.4, tarsus 

 26; female, wing 91.2, tail 73.8, exposed culmen 23.5, tarsus 26). 

 (Honduras to Mexican States of Vera Cruz and Puebla.) 



Attila citreopygus salvini (j). 807) 



ff. General color of upper parts lighter and more cinnamomeous; tail wholly 



cinnamomeous or very slightly tinged with brown terminally. 



g. Rump and upper tail-coverts tawny-ochraceous or tawny, slightly 



contrasted with cinnamon-brown of back; anterior under parts 



more distinctly streaked; averaging larger (wing of male 90.5-98.5, 



tail, 77-86.5). 



h. Paler, with sides less extensively and deejdy ocluaceous. (Pacific 



slope of Mexico.) Attila citreopygus cinnamomeus (p. 809) 



hh. Darker, with sides more extensively and deeply ochraceous or 

 tawny. (State of Tabasco, southeastern Mexico.) 



Attila citreopygus mexicanus (p. 810) 



a Attila loighti Cherrie, Science Bull. Brooklyn Inst. Arts and Sci., i, no. 8, July 16, 

 1906, 191 (p. 5 of reprint) (Heights of Aripo, Trinidad; coll. Mus. Brooklyn Inst. Arts 

 and Sciences). 



bAttila nif pectus Allen, Bull. Am. Mus. N. H., xiii, Aug. 25, 1900, 153 (Las Nubes, 

 Santa Marta, Colombia, 5,000 ft.; coll. Am. Mus. N. H.). 



''Attila parvirostris Allen, Bull. Am. Mus. N. II., xiii, Aug. 25, 1900, 153 (Minca, 

 Santa Marta, Colombia; coll. Am. Mus. N. H.). 



