EUGENES. 309 
tipped with dull 
light grayish 
brown; plumage 
in general very 
dull, the lower 
parts dull brown- 
ish gray. 
Pheeoptila. 
m?, Exposed culmen not more 
than half as long as 
tail. 
Adult males with 
cheeks black, bor- 
dered above by a 
white stripe or 
spot; forehead and 
chin deep blue, or 
blue-black; throat 
brilliant emerald- 
green.. Basilinna. 
(Page 318.) 
Genus EUGENES Govutp. (Page 307, pl. XC., fig. 1.) 
Species. 
Common CHaractErs.— Adult males with top of head rich metallic violet or violet- 
blue, the chin and throat brilliant emerald-green or light bluish green ; upper parts 
dark bronzy green ; lower parts (except throat and lower tail-coverts) plain dusky 
greenish or dull bronzy; lower tail-coverts paler greenish or bronzy, bordered with 
paler. Adult females with top of head dull brownish gray or grayish brown, rest 
of upper parts bronzy green ; lower parts pale brownish gray, the sides and flanks 
tinged with green; a small white postocular spot. 
a. Adult male: Breast very dark bronzy green, appearing nearly black in some 
lights ; length 4.50-5.00, wing 2.90-3.10, tail 1.90-2.00, culmen 1.00-1.20. Adult 
female: Outer tail-feathers very broadly (for about .35-.45) tipped with pale 
gray or dull grayish white; wing 2.60-2.75, tail 1.70-1.90, culmen 1.00- 
1.15. Young: Similar to adult female, but feathers of upper parts bordered 
terminally with pale buffy. Hab. Highlands of Mexico and Guatemala, 
north to southern Arizona.. 426. E. fulgens (Swains.). Rivoli Hummingbird. 
a’, Adult male: Breast dull bronzy, or bronzy green, the feathers dull brownish 
gray immediately beneath surface; lower tail-coverts green margined with 
1 Pheoptila Goutp, Intr. Mon. Troch oct. ed. 1861, 169. Type, Cyanomyia (?) sordida Gounp. (The single 
known species peculiar to Mexico.) 
