BIRDS or north; and middle AMERICA. 313 



sylvania, breeding). — Dwight, Auk, vii, 1890, 144 (monogr.); ix, 1892, 202 

 (Bradford Co., Pennsylvania, breeding).— Todd, Auk, viii, 1891, 236 (Butler 

 Co., w. Pennsylvania, breeding), 395 (Beaver Co., w. Pennsylvania, breed- 

 ing). — Faxon, Auk, ix, 1892, 201 (Franconia, New Hampshire, and North 

 Adams and Williamstown, Massachusetts, breeding). — Attwater, Auk, ix, 

 1892, 237 (San Antonio, Texas, winter). — Stone, Birds E. Penn. and New 

 Jersey, 1894, 102 (Delaware Co., Pennsylvania). — Morris, Auk, xvi, 1899, 

 85 (Springfield, Massachusetts, winter). — Howell, Auk, xviii, 1901, 341 

 (Mount Mansfield, Vermont, breeding). — Norton, Proc. Portland Soc. 

 N. H., ii, 1901, 153 (Choteau Bay, s. Labrador, July 14; crit.). — Oberholser, 

 Proc. U. S. Nat. Mus., xxiv, 1902, 825 (monogr. j.— Allen (G. M.), Proc. 

 Manchester Inst., iv, 1902, 123 (New Hampshire, breeding locally).— Todd, 

 Ann. Carnegie Mus., ii, 1904, 564 (Erie Co., Pennsylvania, breeding; habits). — 

 Wood and Frothingham, Auk, xxii, 1905, 49 (Oscoda Co., n. Michigan, 

 breeding). 



O[tocoris] alpestris praticola PvIdgway, Man. N. Am. Birds, 1887, 348. 



0[tocorys] a[lpestris] praticola Coles, Key N. Am. Birds, 5th ed., i, 1903, 506. 



[Otoconjs leucolsema.] Subsp. a. Otocorys praticola Sharpe, Cat. Birds Brit. Mus., 

 xiii, 1890, 539, part". 



Otocoris alpestris giraudi (not of Henshaw) Beckham, Proc. U. S. Nat. Mus., x, 

 1888, 668, part (San Antonio, Texas). 



OTOCORIS ALPESTRIS DIAPHORA Oberholser. 

 TAMATTLIPAS HORNED LARK. 



Very similar to 0. a. 'praticola, but smaller, with back less grayish 

 (more browTi or buffy) and less distinctly streaked ^vith dusky; 

 similar also to 0. a. cltrysolsema but smaller, with hindneck, etc., 

 decidedly paler vinaceous; similar also to 0. a. aphrasta, but upper 

 |)arts less cinnamomeous and back more distinctly streaked with 

 dusky. Adult female similar to that of 0. a. cJirysolsema, but decidedly 

 smaller. Young very similar to those of 0. a. enthymia, 0. a. giraudi, 

 and 0. a. leucolseina, but averaging grayer above than the last. 

 (Intermediate between 0. a. giraudi and 0. a. chrysolsema; inter- 

 grading also with 0. a. aphrasta.) 



Adult male.— Length (skins), 152-162 (158) ; wing, 96.5-103 (99.4); 

 tail, G4.5-70.5 (67.5); exposed culmen, 11-12 (11..3); tarsus, 21-22.5 

 (21.7); middle toe, 11-12 (11.4).^ 



Adult female.— Length (skins), 140-154 (149) ;'^ wing, 89; tail, 56; 

 exposed cidmen, 11.5; tarsus, 20.5; middle toe, 10.5.^ 



Southern Tamaulipas (Miquihuana), Hidalgo (Irolo; Tida: Pa- 

 chuca; Real del Monte) and (in winter) Oaxaca (Tamazulapam, 

 November 14). 



Otocoiis alpestris diaphora Oberholser, Proc. U. S. Nat. Mus., xxiv, no. 1271, 

 June 9, 1902, 829 (Miquihuana, Tamaulipas, e. Mexico; coll. U. S. Nat. Mus.). 



aMost of the specimens enumerated belong to this form, but some of them e^•idently 

 do not; for example, specimens g, h. and i, from British Columbia (which probably = 

 0. a. merrilli); also a, b, and c, from "N. W. America'' and dtrom Fort Simpson. The 

 synonymy contains many errors of citation. 



^ Seven specimens. c Three specimens. d One specimen. 



