BIRDS OF NORTH AND MIDDLE AMERICA. 415 



AMIZILIS YUCATANENSIS CHALCONOTA (Oberholser;. 



BTJFF-BELLIED HUMMING BIRD. 



wSimilar to A. y. cerviniventris, but under parts of l)otly much paler 

 (lia:ht cinnamon buff to pale pinkish buff) and green of upper parts 

 averaging more bronzy. 



Adult male.— Length (skins), 95-105 (100); wing, 52.5-59 (55. S); 

 tail, 32-37.5 (34); culmen, 20-21.5 (20.7).« 



Adult female.— Length (skins), 91-101 (96); wing, 52.5-55.5 (53); 

 tail, 30-35 (32.8); culmen, 20.5-22.5 (21.3).« 



Lower Rio Grande Valley in Texas (Ft. Bro^^^l; Brownsville), and 

 southward into States of Tamaulipas (Tampico; Alta Mira; Xico- 

 tencatl; Boque Negro; Victoria; Rio Corono; Sota La Marina; Mata- 

 moras; Santa Leonora; Rio de la Cruz) and Nuevo Leon (Saltillo; 

 San Pedro Mines), northeastern Mexico. 



Amazilia cervineiventris (not Amazilia cerviniventris Gould) Merrill, Bull. 

 Nutt. Orn. Club, ii, 1877, 26 {Vt. Brown, Texas). 



Amazilia cerviniventris Brewer, Ibis, 1878, 116 (Ft. Bro^A^l; descr. nest). — 

 CouES and Sennett, Bull. U. S. Geol. and Geog. Siu-v. TeiT., iv, no. i, 1878, 

 35 (Brownsville, Texas; descr.; habits). — Allen, Bull. Nutt. Orn. Club, v, 

 1880, 90 (Ft. Brovra).— RiDGWAY, Norn. N. Am. Birds, 1881, no. 346; Proc. 

 U. S. Nat. Mus., iii, 1881, 187, 318, part (Texas); iv, 1881, 25, part (crit.); 

 Rep. U. S. Nat. Mus. for 1890 (1891), 364, part (monogr.; habits).— Coues, 

 Check List, 2d ed., 1882, no. 420. — American Ornithologists' Union, 

 Check List, 1886, no. 439.— Salvin, Cat. Birds Brit. Mus., xvi, 1892, 214, 

 pail (Browns\dlle; localities in Tamaulipas?).— Salvin and Godman, Biol. 

 Centr.-Am., Aves, ii, 1892, 300, part (Rio Grande Valley; localities in 

 Tamaulipas?). — Bendire, Life Hist. N. Am. Birds, ii, 1895, 225. 



A[mazilid\ cerviniventris Ridgway, Proc. U. S. Nat. Mus., iv, 1881, 25, 126 

 (diagnosis; crit.); Man. N. Am. Birds, 1887, 317, part. — Coues, Key N. Am. 

 Bu-ds, 2d ed., 1884, 466, part. 



Amazilia yucatanensis (not Trochilus yvcatanensis Cabot) Ridgway, Proc. U. S. 

 Nat. Mus., i, 1879, 148, excl. syn. part (Ft. Brown, Texas; descr.); iii, 1880, 

 187, 219, 233; Nom. N. Am. Bnds, 1881, no. 346.— Merrill, Proc. U. S. 

 Nat. Mus., i, 1879, 149 (Ft. Brown; habits). 



Amazilia cerviniventris chalconota Oberholser, Auk, xv, Jan., 1898, 32 ("Bee- 

 ville"= Brownsville, Texas; coll. U. S. Nat. Mus.), 188 (con-ection of type 

 locality). — American Ornithologists' Union Committee, Auk, xvi, 

 1899, il2. 



A[m.azilia] cerviniventris chalconota IIartert, Das Tierreich, Troch., 1900, 59. 



[Amazilia] chalconota Sharpe, Hand-list, ii, 1900, 108. 



Amizilis cerviniventris chalconota Oberholser, Proc. Ac. Nat. Sci. Phila., June 

 2, 1899, 208.— Bailey (Florence M.), Handb. Birds W. U. S., 1902, 243.— 

 American Ornithologists' Union, Check List, 3d, ed., 1910, 205.^Phillips, 

 Auk, xxviii, 1911, 77 (Alta Mira, Matamoras, Santa Leonora, and Rio de la 

 Cruz, Tamaulipas). 



« Ten specimens. 



