252 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Peucsea houcardi (not Zonotrichin houciirdi Sclater) Salvin and Godmax, Biol. 



Centr.-Am., Aves, i, 1S8(>, 391, part (Texas). 

 Peucra ruficeps boucai-di Sennett, Auk, v, Jan., 1888, 42, part (crit.; Kendall and 



Presidio counties, Texas). 

 lPeucxar)ificq}S.} Subsp. /3. Peuani boacardi Sharpe, Cat. Birds Brit. Mus., xii, 



1888, 714, part (in synonymy). 



AIMOPHILA RUFICEPS BOUCARDI (Sclater). 

 BOUOARD'S SPARROW. 



Similar to ^4. /■. e/vimvci/ but decidedljr darker, with the general 

 color of back, etc., deep hair brown instead of smoke gray or ashy, 

 dorsal streaks darker (dark bister or vandyke brown), chestnut of 

 pileum darker, and underparts more strongly shaded with grayish on 

 chest and sides. 



Adult male.— Length (skins), 137.16-1.54.94 (142.49); wing, 60.45- 

 69.09 (64.01); tail, 62.23-74.93 (66.65); exposed culmen, 11.18-12.70 

 (12.19); depth of bill at base (seven specimens), 6.35-6.86 (6.60); 

 tarsus, 19.05-21.84 (20.32); middle toe, 14.73-16.00 (15.49).^ 



Adult fetm/le.— Length (skins). 146.05-152.40 (149.86); wing, 63.75- 

 70.61 (67.56); tail, 70.61-74.93 (72.64); exposed culmen, 11.68-12.45 

 (12.19); depth of bill at base, 6.86-7.37 (7.11); tarsus, 20.83-21.84 

 (21.34); middle toe, 15.24.' 



Eastern portion of Mexican plateau, from southeastern Tamaulipas 

 (Sierra Madre above Ciudad Victoria), San Luis Potosi (mountains 

 near Jesus Maria; Villar), Coahuila (Carneros), Hidalgo (Tulancingo; 

 Pachuca), and Vera Cruz (temperate region), to States of Tlaxcala, 

 Puebla (Tochimulco), Mexico (Tlalpam), and Guererro (Tixtla). 



Ammodromus ? Sclater, Proc. Zool. Soc. Lond., 1857, 214 (Orizaba, Vera 



Cruz). 

 Zonoirichia houcardi Sclater, Proo. Zool. Soc. Lond., 1867, 1, pi. 1 (La Puebla, 



Puebla, s. Mexico; coll. P. L. Sclater). 

 [Ammodramus] houcardi Gray, Hand-list, ii, 1870, 96, no. 7430. 

 [PewcEd] houcardi Sclater and Salvin, Nom. Av. Neotr., 1873, 32. 

 PmcjEa 6oucardi Salvin and Godman, Biol. Centr.-Am., Aves, i, 1886, 391, part 



(Orizaba and temperate reg. Vera Cruz; La Puebla and Puente Colorado, 



Puebla). 

 \_Peuceea ruficeps] var. houcardi Ridgway, in Baird, Brewer, and Ridgway's 



Hist. N. Am. Birds, ii, 1874, 38, part (excl. loc. Oaxaca). 

 Peuaea ruficeps YSiT. houcardi Lawrence, Bull. U. S. Nat Mus., no. 4, 1876, 21, 



(Puente Colorado, Puebla). 

 P.[euciea} ruficeps houcardi Ridgway, Man. N. Am. Birds, 1887, 429, part. 

 Peuaea ruficeps houcardi Sennett, Auk, v, Jan., 1888, 42, part (Orizaba; Puebla; 



City of Mexico). 



' Twenty specimens. 



^ Three specimens. The apparently greater average size o£ the females is undoubt- 

 edly owing to the great disparity of numbers of the two series measured, together 

 with probable erroneous sexing of some specimens. 



