BIRDS OF SOUTHWESTERN MEXICO. 21 



bead and lower back; rmiip and upper tail coverts dull light blue ; 

 mifldle tail-feathers dull blue, the outer webs of the other tail-feathers 

 siinilar in color, the inner webs blackish-brown 5 quill-feathers dark- 

 brown ; the smaller wing-coverts and the outer edges of the larger 

 quills pale-blue ; the other wing-coverts and the tertiaries have margins 

 the color of the back ; chin grayish ; under plumage of a dull brownish 

 rose-color, paler and clearer on the abdomen and under tail-coverts j 

 bill and feet similar in color to those of the male. Types in National 

 Museum, Washington, D. C. 



84. Eiispiza americana (Gm.). 



" Tehuantepec (Juchitan, Guichicovi) ; Tehuantepec City ; Septem- 

 ber and October. 

 " Iris brown ; bill brownish, tinged with yellow ; feet hazel-brown." 



85. Pa$$«ei*culu^ savanna var. alaudinus, Bp. 



'' Tehuantepec City ; November, 1869. 



" Iris brown ; upper mandible brownish, lower mandible and feet 

 fleshy." 



86. Zonotrichia mystacalis, Hartl. 



" Tehuacan (Puebla) ; August, 1868. 



"Iris reddish-brown; upper mandible black, lower light-blue; feet 

 fleshy." 



87. Spizella socialis (Wils.). 



" Chiapas (Gineta Mountains) ; January, 1869. 



88. 8pizella socialis var. arizonae, Coues. 



" Tehuantepec (Guichicovi) ; September, 1869. 



"Iris brown; upper mandible brown, lower mandible lighter; feet 

 brownish flesh." 



89. 8pizella atrig^ularis, Cab. 

 " Chapulco (Puebla) ; January, 1868. 



" Iris brown ; bill brownish-orange ; feet brownish." 



90. Peiicasa ruficeps var. boucardi, Scl. 

 " Puente Colorado (Puebla) ; August, 1868. 



" Iris brown ; upper mandible horny-brown, lower bluish ; feet fleshy." 



91. €oturnicului§ pasiserinu§ (Wils.). 



"Tehuantepec City; November, 1869. 



" Iris brown ; upper mandible dusky, lower light-bluish ; feet fleshy." 



