1136 MR. C. E. HELLMAYR ON THE 



Therefore, the natural affinities of these species are correctly 

 expressed by the following scheme : — 



(a) M. harhatus harbatus : Guiana and Northern Brazil (Rio 



Negro, Borba, Para, etc.). 



(b) M. harbatus atricauclus ; Western Ecuador and Colombia, 



Panama, Costa Eica. 



(c) M. barbatus mastacalis : Eastern Brazil from Bahia to Rio, 



west to the Rio Madeira (c/r, Nov. Zool. xvii. 1910, 

 p. 299). 



(d) M. sulphureipygius sulpMireijjyg'Ms : Southern Mexico ; 



? Guatemala, British Honduras. 



(e) M. sulpJmreijjygius aureatus : From Honduras south to 



Panama. 



(f) M. sulphui^eipygit(,s villosibs : Western Colombia and Ecua- 



dor ; ? Peru, N. Bolivia. 



80. Myiobius erythrurus fulvigularis Salv. & Godm. 

 [Afyiobitts erythrurus Cabanis, Arch. f. Naturg. 13, i. p. 249, 



pi. 5. fig. 1 (1847.— Guiana, Cayenne). ] 



M. falvigularis Salvin & Godman, Biol. Centr.-Amer., Aves, 

 ii. p. 58 (1889.— Santa Fe, Yeragua). 



No. 2554. $ ad. Juntas, Rio Tamanji, 23.ii.09.— Wing 48 ; 

 tail 36 ; bill 8^ mm. 



" Iris brown, feet yellow, maxilla black, mandible pink." 



This is an extreme example of M. e. fulvigularis, agreeing with 

 skins from Costa Rica. The forehead is strongly washed with 

 buff, the under parts are bright buffy ochreous, the throat lighter, 

 more tawny, etc. 



Gfr. my remarks in Nov. Zool. xiv. 1907, p. 48. 



81. Empidonax viRESCENS Yieill. 



Platyrhynchos virescens Yieillot, Nouv. Diet, xxvii. p. 22 

 (1818 — based on Muscicapa querula (nee Yieillot) Y^ilson, Anier. 

 Orn. ii. 1810, p. 77, pi. 13. fig. 2— Eastern North America). 



Umpidonax acadicus auct. (nee Gmelin). 



No. 2826. ( 6 ) ad. Pueblo Rico : 5200 ft., 2.xi.09.— Wing 74 ; 

 tail 62 ; bill 13 mm. 



No. 2174. $ ad. Sipi : 9.X.08.— Wing 70 ; tail 59 ; bill 



12 mm. 



" Iris brown, feet dark grey, maxilla black, mandible yellow." 



A common winter visitor to the Western States of South 

 America. It has several times been taken in Ecuador. 



82. Myiochanes richardsonii richardsonii Swains. 

 Tyranmda richardsonii Swainson, Fauna Bor.-Amer. ii. p. 146, 



pi. 46, fig.inf. (1831.— Cumberland House. Saskatchewan, Canada). 

 ^o, _. 2 ad. Loma Hermosa, 4150 ft. : 22.X.09.— Wing 80 ; 

 tail 62 ; bill 12 mm. 



