364 REPORT OF NATIONAL MUSEUM, 1890. 



/ 2 . Belly and flanks cinnamon-rufous or pale cinnamon ; lores not distinctly 



rusty. 

 flr 1 . Belly and flanks deep cinnamon-rufous. Hal. Yucatan. 



A. yucatanensis (CABOT). Cabot's Humming Bird.* 



<7 2 . Belly and flanks pale cinnamon or cinnamon-buff. Hal). Eastern 

 Mexico, north to southeastern Texas. 



A. cerviniventris GOULD. Buff-bellied Humming Bird. (Page 364.) 

 a-. Lower parts entirely cinnamon. 



6'. Smaller (wing 2.15-2.25, exposed culmeu 0,80-0.88). Hob. Western Mexico and 



Yucatan to Nicaragua. 



A.cinnamomea (LESS.) Cinnamomeus Humming Bird.] 



6*. Larger (wing 2.50-2.70, exposed culmen 0.901.05). Hal). Tres Marias Islands, 

 western Mexico. A. graysoni LAWR. Graysons Humming Bird.\ 



BUFF-BELLIED HUMMING BIRD. Amazilia cerviniventris GOULD. 



Amazilius cerviniventris GOULD, P. Z. S., 1856, 150. 



Amazilia cerviniventris GOULD, Mon. Troch., pt. xm, 1857, pi. 12; vol. v, 1861, pi. 



309. MERRILL, Bull. Nutt. Orn. Cl , n, Jan. 1877, 26 (Ft. Brown, Texas). 



Am azilea yncatanensis MERRILL and RIDGW., Pr. U. S. Nat. Mus,, i, 1878,148 (Ft. 



Brown, Texas ; not Trochilusyucatanenais CABOT). 

 Fawn-breasted Arnazili (GoULD). 

 Rufous-bellied Humming Bird (CouES). 

 L'Amazili a veutre de biche (MULSANT and VERREAUX). 

 Chupamirto de pecho verde y vieutre castauo (D'OcA). 



RANGE. Eastern Mexico, north to the lower Rio Grande Valley, in 

 Texas. 



SP. CHAR. Adult (both sexes): Lores greenish or dull brownish (never 

 rusty); belly and flanks pale dull cinnamon-buff; upper parts metallic 

 bronze or bronze-green, the upper tail-coverts somewhat tinged with 

 rusty on basal portion; tail rufous-chestnut (glossed with purple on tbe 

 under surface), the feathers broadly tipped and margined terminally 

 with metallic bronze; some specimens (immature specimens only?) 

 with a considerable blackish subterminal space on one or both webs of 

 all but the middle pair of feathers; chin, throat, and chest brilliant 

 metallic Paris-green ; breast metallic bronze-green ; bill reddish (light 

 brownish in dried skins), blackish terminally; length about 4.00-4.50; 

 wing, 2.15-2.25; tail, 1.35-1.60, slightly emargiuated; exposed culmen, 

 0.75-0.82. Young similar to adult, but upper mandible black, upper 

 tail-coverts broadly margined with rusty, and tail-feathers (except mid- 

 dle pair) with a more or less extensive subtermiual space of blackish on 

 one or both webs, the median portion, however, including shaft, chest- 

 nut. 



Adult male (No. 90749, Fort Brown, Texas, Dr. J. 0. Merrill, U. S. 

 Army): Above metallic green, tinged with bronze, the top of the head 

 very much duller; upper tail coverts bronze-green, their basal portion 



* Trochilus yucatanensis CABOT, Proc. Nat. His. Soc., Bost., 1845, 74. Amazilia yuca- 

 tanensis GOULD, Mon. Troch. pt. xxm, 18C1 (\ol. v, 1801, pi. 308). 



iOrnismya cinnamomea LESS., Rev. Zool., 1842, 175. Amazilia cinnamomea ELLIOT, 

 Class, and Synop. Troch., 1879, 219. 

 t. Amazilia (Pyrrhophcena) graysoni LAWR., Ann. Lye. N. Y., 18f7, 404. 



