484 BULLETIN 50, UNITED STATES NATIONAL MUSEUM, 
COLIBRI CYANOTUS (Bourcier and Mulsant). 
LESSER VIOLET-EAR. 
Similar to (. thalassinus, but without blue on chest or lores. 
Adult male-—Above metallic green or bronze-green; tail more 
bluish green (the middle rectrices usually more bronzy), crossed by 
a broad subterminal band of blue-black; remiges dark brownish slate 
or dusky, very faintly glossed with purplish; suborbital and auricular 
(but not loral) region rich dark metallic violet-blue; chin and throat 
bright metailic green (varying from slightly bluish to yellowish 
emerald green) each feather with a darker median streak or spot; 
rest of under parts duller metallic green, the center of chest sometimes 
slightly tinged with bluish green; under tail-coverts metallic green 
or bronze-green, margined (broadly toward base) with pale brownish 
or grayish buffy; femoral tufts brownish white; bill dull black; iris 
dark brown; feet grayish brown or dusky; length (skins), 98-118 
(109); wing, 59.5-68.5 (65.2); tail, 35-45.5 (40.4); culmen, 19.5-23.5 
(21.2).% 
Adult female.—Similar to the adult male, but smaller and slightly 
duller in color; length (skins), 96-113 (103); wing, 58-68 (62.3); tail, 
34-43 (38.3); culmen, 16-23 (20.5).® 
Young.—Essentially like adults, but feathers of upper parts con- 
spicuously tipped or margined with rusty brown or cinnamon, those 
of under parts similarly but less distinctly margined, the chin and 
throat dull metallic green (the brilliant feathers of the adult plumage 
first appearing on center of throat). 
« Thirty specimens. b Twelve specimens. 
‘ Ex- 
Locality. Wing. | Tail. | posed 
culmen. 
MALES 
Ten adult males from Costa Rica...........----+-+ Sale Dama wi amiaaaeadivie a Reas ines | 65.3 40.6 21.3 
Six adult males from Panamé......... me Miiinb ie aaeistes ---| 64.9 40 21.8 
Five adult males from Colombia 
One adult male (C. c. 
63.4 39.4 20,6 
68.5 40.5 19 
?) from eastern Feuad6r. 
Nine sdultsnales from. Vousqiels...c..00..cscucecssansiurnacaeieeeemensnaees ane 66.2 | 40.9 20.9 
FEMALES. 
Seven adult females from Costa Rica..-......... 02. sees cece cence cee ne eee enone 60.5 "37.7 20.3 
Two adult females (C. c. 7) from eastern Ecuad6r.....-..-....-.-.+-- 61.2 36.7 20.7 
Five adult females from Venezuela. .....--------- 22222 eeeee ee eee eee eee eee eee 1 64.9] 39.2, 20.8 
| 
I feel quite sure that several of the alleged females from Venezuela are in reality 
males with the sex wrongly determined. If these were eliminated the averave dimen- 
sions of the female would be considerably reduced. 
Specimens from Costa Rica, Panama, Colombia, and Venezuela seem to be quite 
alike; but those from eastern Ecuadér (Baeza) are easily distinguished by their 
conspicuously buffy under tail-coverts and (at least in males) larger size. 
