BIRDS OF NORTH AND MIDDLE AMERICA. 323 



[Eremophila. alpcs!ris.] Var. clmjsolsema Coues, Key N. Am. Birds, 1872, 89, 

 part. — Baii!d, Brewer, and Ridgway, Hist. N. Am Birds, ii, 1874, 144, part. 



{Eremophila alpcstris] c. chrysolxma Coues, Birds Northwest, 1874, 38, part. 



Eremophila alpcstris chrysolsema Ridgway, Bull. Essex. Inst., Oct., 1874, 172 

 (Sacrament Valley). — Coues, Check List, 2d ed., 1882, no. 84, part. 



Eremophila alpestris, fi. chrysolxma Belding, Proc. U. S. Nat. Mus., i, 1879, 423 

 (Marysville, Cal.). 



[Otocorys alpestris] riibeus IIenshaw, Auk, i, July, 1884, 260 (crit., etc.). 



[Otocorys] alpestris rubcus Henshaw, Auk. i, July, 1884, 263, 267, part ("Stock- 

 tori", California; coll. U. S. Nat. Mus.) 



Otocoris alpestris rubea American Ornithologists' Union, Check List, 1886, no. 

 474y._TowNSEND (B. H.), Proc. U. S. Nat. Mus., x, 1887, 210 (upper Sacra- 

 mento Valley, California; habits; descr. nest and eggs). — Dwight, Auk, vii, 

 1890, 150 (crit.).— Oberholser, Proc. U. S. Nat. Mus., xxiv, 1902, 851 

 (monogr.). 



0[tocoris] alpestris rubea Ridgway', Man. N. Am. Birds, 1887, 349. 



0[tocorys] a[l2)estris] rubea Coues, Key N. Am. Birds, 5th ed., i, 1903, 508. 



[Otocorys alpestris.] Subsp. y. Otocorys rubea Sharpe, Cal. Birds Brit. Mus., 

 xiii, 1890, 548, part (excl. specimens d^-g^, Zacatecas, Mexico, and h^-V, 

 Oaxaca, Mexico). 



OTOCORIS ALPESTRIS OAXACiE Nelson. 

 OAXACA HORNED LARK, 



Similar to 0. a. actia, but decidedly smaller, vinaceous of hind- 

 neck, etc., deeper, ground color of back slightly more buffy, and 

 yellow of throat deeper; somewhat like 0. a. rubea, but upper parts 

 darker and less rufescent (more vinaceous) and size smaller; differ- 

 ing from 0. a. chrysolsema in much smaller size and decidedly more 

 rufescent and more uniform color of upper parts. Adult female 

 similar" to that of 0. a. clirysolsRina, but more buffy or cinnamomeous 

 above and much smaller. Young" most like that of 0. a. actia, but 

 spots on upper parts white instead of buff, throat yellow, and chest 

 more distinctl}^ streaked on a paler buffy ground. 



Adult male.— LeTLgi\i (skins), 15.5-158 (156); wing, 94.5-99 (96.8); 

 tail, 58-66 (61.3); exposed cidmen, 11-12 (11.5); tarsus, 21-23.5 

 (21.9); middle toe, 10.5-13 (11.9).^ 



Adult female. — Length (one skin), 145; wing, 87-90.5 (89.3); tail, 

 53-57 (55.5); exposed culmen, 10-11 (10.6): tarsus, 20-22 (21); 

 middle toe, 11-12 (11.4).'^ 



Southern Oaxaca (San Mateo del Mar; Mitla; Tehiiantepec), south- 

 ern Mexico; resident. 



Otocorys chrysoliema {uot Alauda chrysolaema W'agler) Sclater, Proc. Zool. Soc 

 Loud., 1859, 372 (Oaxaca, Mexico; crit.). 



« From Mitla, Oaxaca, from which locality adults differ so much from those from the 

 type locality (San Mateo del Mar) that they almost certainly require separation. 

 (> Ten specimen.^, 

 c Four specimens. 



