102 PROCEEDIl^S OF UNITED STATES NATIONAL MUSFt^^' 



ferruginous, with of the other styles, I s' ' 



iu the middle port^Pecies. This style is ' ^ .....i\^ , ..Ji;. ;.. . ^ 



are white, with th^I'^ (^- ^•)» ^^ which probuv^.y as many as 90 per ct"' 

 streaks are render^oughtlrom those countries may be referred. It hap- 

 Re'^ardiuo- the '^ ^^^^ absolutely typical specimens of the " hrasili- 



p 1X4)- ^^ f^'O both these countries, specimens of typical 



"The rufous ph'pc^r 11 -izil, thus annulling the importance of geo- 

 that I have seen ftions; 'e, as a further proof of specific identity, 

 color with the head'^^ns ' cannot be referred to either one or the 



to a blackish patch ;^orm^ hich are in every respect intermediate, 



black, as is also the'- 



tious of bars." As ^^"^^ "iety are, a confusedly-mottled, '^^ ' 



sometimes assume t)> lo i§^e, and a darker upper surfac '; 



■^ A specimen in tl'? ^^ mess and clearness of all the u '^'' 



i'^^'Oca* Mus. Salvin 1^*^ form; the bright orange-buff bases 



of ms described abovO^' ' ^o usual {hut not constant) iu typical 



spc^-^k shaft-streaks an' '^^> ^^ ^''^o absent in all the specimens 



I havvjQfi tiiroat, the c(?f 'ty» the individual variations in ''gua- 



lemahiQ r^jjjj ^he paler ta\ ^tb as to the shades of coloration and 



the paij-gd \ifith a rufous ^'^ rincipal of these are the following: — 



Gray -ences are ^^'^ 'ivin & Godman, Coban, "^'"c" ^ i'' 



Jan. — ^o- pi : -Prt'^ S mg color above pale bro. Jic^ii, .e," 

 coarsely i pale buff and grayish-white, and with larger and 



very irre s'prts of blackish, these nowhere assuming the form of 



shaft-str ven on the crown; sides of the forehead or "eyebrows" 



appreci j,.iUt not abruptly, paler (mottled whitish). Face, throat, 

 sides of fieck, and jugulum dirty whitish, finely and quite regularly 

 undulat'-l transversely with brownish, the dusky facial circle not dis- 

 tinct. BiSt of lower parts soiled white, the whole surface relieved by 

 iiery irregtdar^ ragged, and confused zigzag lines of dusky brownish, the 

 feathers showing very irregular, but quite distinct, mesial, blackish 

 streaks, with which the transverse markings unite. 



The above description is of a specimen representing the extreme gray- 

 ish phase, so far as shown by the series before me; others, in Messrs. 

 Salvin and Godman's collection, exhibit a gradual transition to the 

 rufous i)hase, sc-arcely two specimens being alike in the precise shade 

 of brown, while positively none agree in the details of pattern. Thus, 

 two males from Yeragua ("Arce, 2401", and "Arce, 1806") have the 

 upper parts so nearly devoid of coarse mottlings as to appear of a nearly 

 uniform light umberbrown. On the other hand, a specimen from Vera 

 Paz ("O. S. 2348") has the general dusky coloring above relieved by 

 very conspicuous, large, and, in places, regularly-oblong, transverse 

 spots of pale fawn-color. In the latter specimen, the white on the outer 

 ■web of the scapulars is broken by transverse wide bars of mottled fawn 

 and dusky, while in nearly all the others this white is unbroken, having 

 only the terminal blackish border common to nearly all the species of the 

 genus. 



