514 



BUL-LETIN 50, UNITED STATES NATIONAL MUSEUM. 



Coloration. — Back, etc., metallic bronze-green, the middle rectrices 

 and basal portion of other rectrices less bronzy or more bluish green, 

 the outer rectrices blackish terminally or subterminally; under parts 

 partly or wholly grayish; a white postocular spot. Adult male with 

 head mostly metallic violet or violet-blue, under parts of body glossed 

 with metallic greenish, and without grayish tips to lateral rectrices; 

 adult female with pileum greenish blue, whole under parts pale gray, 

 and outer rectrices tipped with pale gray. 



Range. — Nicaragua to Venezuela and Ecuador. (Monotypic.) 



KLAIS GUIMETI (Bourcier and Mulsant). 



GUIMET'S HUMMING BIRD. 



Adult male. — Pileum bright metallic violet or violet-blue, becom- 

 ing more decidedly blue (sometimes even greenish) posteriorly; rest 

 of upper parts metallic bronze-green or greenish bronze, the upper 

 tail-coverts purer green or bluish green; middle rectrices metallic 

 silvery bronze-green or bluish green, the remaining rectrices similar 

 basally, but with terminal half (approximately) dull black or dusky, 

 narrowly tipped with light brownish gray; remiges purplish dusky; a 

 postocular spot of white; chin, throat, and malar region rich metallic 

 violet or violet-blue; rest of under parts brownish gray, spotted or 

 flecked (except on abdomen) with metallic green or bronze-green, 

 the under tail-coverts brownish gray margined with dull white or 

 pale gray; bill dull black; iris dark brown; feet grayish brown (in 

 dried skins); length (skins), 70-82 (75); wing, 45-52.5 (49.5); tail, 

 25.5-31 (28.4); culmen, 12-13.5 (12.8).« 



Adult female. — Above similar to adult male, but with metallic blue 

 of pileum lighter, decidedly blue (not violaceous) or even greenish in 

 hue, lateral rectrices more abruptly tipped with pale gray, and middle 

 rectrices sometimes blackish terminally; under parts pale gray, the 

 sides and flanks glossed or spotted with metallic green or bronze- 

 green; length (skins), 73-79 (76); wing, 44-48.5 (45.9); tail, 23-27 

 (25.1); culmen, 11.5-14 (13).^ 



Young. — Similar to the adult female, but pileum dull metallic 

 green instead of bright blue or bluish green. 



o- Twenty-six specimens. 

 b Seventeen specimens. 



Locality. 



Wing. 



Tail. 



Ex- 

 posed 

 culmen. 



12.9 



12.9 



12.7 



13 



12 



13 



12.9 



14.5 



MALES. 



Ten adult males from Costa Rica 



Five adult males from PanamA 



Nine adult males from central Colombia 



One adult male from eastern Ecuador (Napo) 



One adult male from northern Peru (Chanchamoyo) 



FEMALES. 



Eleven adult females from Costa Rica 



Five adult females from central Colombia 



One adult female from eastern Ecuad6r (Napo) 



48.6 

 49 



50.6 

 52 



48.5 



45.5 

 46.7 

 45 



28.2 



27.9 



28.8 



29 



27.5 



25 



25.4 



24 



