324 REPORT OF NATIONAL MUSEUM, 1890. 



Five species have been referred to this genus, but it is questionable 

 whether all of them really belong to it. They may be tlistiuguishecl as 

 follows: 



a'. Outer tail-feathers broadly tipped with white in both sexes. {Coeligena Less.) 

 Lower parts dull gray, glossed with green on sides ; male with the throat 

 metallic cobalt blue. Ilab.: Highlands of Mexico, north to southern Arizona; 

 Guatemala. C. c?cmf ?jcue Less. Blue-throated Enmm'uig Bird. (Page 324.) 



o*. Outer tail-feathers not tipped with white in either sex. {Delattria BOXAP. ) 

 &•. Lower parts dull grayish, glossed with green on sides, 

 c'. Adult male with throat metallic reddish purple. Hub.: Highlands of Guate- 

 mala. C. /if/ofca (Less, and Delatt.). Hemri Dilattre''s Humming Bird* 

 c^. Adult male with throat metallic violet. Hah. : Sierra Madre of southern 

 Mexico. C. maryaritce Salv. aud Godm. Mrs. Smith's Humming Bird.f 

 6^. Lower parts white medially, metallic green laterally, 

 c'. Ear-coverts dusky green; top of head moderately metallic (green); adult 

 male with throat pale emerald-green, the feathers margined with white. 

 Hai. : Highlands of Guatemala. 



C. viridipallens {BouRC. aud Muls.). Bale- green-throated Humming Bird.t 

 d^. Ear-coverts and top of head brilliantly metallic emerald-green ; adult male 

 with throat pale violet or amethyst. Hah.: Highland of Costa Rica. 



C. hemileuca {^aXy . ). Amethijst- throated Humming Bird.^ 



Blue-throated Humming Bird. Cwligena cJemendw Less. 

 (Plate XXXVI.) 



Ornismya cleitiencice Less., Ois. Mouth., 1829, 21fi, pi. 80, 



Coeligena clemenciw Less., Ind. and Synop. Gen. Troch. 1832, ip. xviii. Brewst., 

 Auk, II, Jan., 1885, 85 ("Camp Lowell," Arizona); Apr. 1885, 199 (correction 

 of locality— Sta Catalina Mountains, not Camp Lowell). 

 Delattria clemencia'. Bonap., Consp. i, 1850, 70.— Gould, Mon. Troch. pt. ix, 1855, 

 pi. 10; vol. II, 1861, pi. GO. 



Clemence's Humming Bird. 



Blue-throated Cazique (Gould). 



Le Coelig^ne de C16mence (Mulsant aud Verreaux). 



Oiseau-Mouche de Cl^meuce (Lesson). 



Chiipamirto real de pecho azul celeste (D'Oca). 



Range. — Highlands of Mexico, north to southern Arizona. 



Sp. char. — Size, very large (length more than 4.50, wing 2.90 — 3.20); 

 lower part dull gray, glossed with green on sides : middle tail-feathers 

 black, and outer ones broadly tipped with white in both sexes; adult 

 male with throat shining blue. 



Adult male (No. 76829, Mexico ; Mrs. Chauncy Riley) : Forehead and 

 crown dull brouze-green, appearing dull olive iu certain lights ; occiput, 

 hind-neck, back, scapulars, and wiug-coverts much brighter green 

 (nearly a grass-greeu), lower back aud rump light, rather dull, bronze- 



* Ornismya henriea Less, and Uelattr., Rev. Zool. 1839, 17. Coeligena henrici Cab. 

 and Hein., Mus. Hein. ili. 1800, 15. 



t Delattria margaritw Salv. aud God.m., Ibis, Apr. 1889, 239. 



t Trochilus viridipallens BouRC. and MuLS,, Ann. Hoc. Lyons, 1846, 321. Coeligena 

 viridipallens Muls., Hist. Nat. Ois. Moiich. i. 1H77, 185. 



$ Oreopyra hemileuca Salv., P. Z. S. 1864, 584. Coeligena hemileuca Elliot, Class. 

 and Synop. Troch. 1879, 31. 



