588 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Tarsus feathered, except on posterior side; lateral toes about equal 
in length, slightly shorter than middle toe. Wing about three times 
as long as exposed culmen, the outermost primary longest, not atten- 
uated at tip. Tail about half as long as wing, double-rounded, the 
rectrices broadest subterminally, subspatulate (especially the middle 
pair) in adult male, in adult female rounded, with rectrices less dis- 
tinctly subspatulate. 
Coloration—Above metallic bronze-green; beneath dull whitish 
medially and on chest, cinnamon-buffy laterally; adult male with nar- 
row, elongated feathers of throat pure white basally, metallic reddish 
purple terminally, the tail (including middle rectrices) blackish passing 
into sooty grayish terminally and edged with cinnamon-rufous 
basally; adult female with throat whitish, sometimes flecked with 
dusky, middle rectrices bronze-greenish, other rectrices grayish 
basally (with shaft of that portion pale cinnamon) black subterminally 
or terminally, the two or three outermost tipped with white. 
BRange.—British Columbia to central Mexico. (Monotypic.) 
STELLULA CALLIOPE (Gould). 
CALLIOPE HUMMING BIRD. 
Adult male.—Above metallic bronze-green, usually rather duller on 
forehead; middle pair of rectrices subspatulate or with subterminal 
portion contracted, dull purplish black or dusky, edged basally (more 
or less distinctly) with cimnamon-rufous, and broadly tipped with dull 
brownish gray; remaining rectrices similar in coloration, but cinna- 
momeous basal edgings less distinct (sometimes obsolete) and grayish 
tip less distinct; remiges dull brownish slate or dusky, very faintly 
glossed with purplish; feathers of gorget narrow and distinctly out- 
lined, much elongated posteriorly, pure white basally and metallic 
reddish purple (solferino) terminally, the basal white much exposed, 
especially on chin and upper throat; foreneck and chest white, or 
grayish white; rest of under parts more grayish, strongly tinged or 
suffused with cinnamon-buff laterally, the sides glossed, or overlaid, 
with metallic bronze-green, the under tail-coverts white, tinged with 
cinnamon-buff toward anal region; maxilla dull black or dusky; 
mandible dusky terminally, more brownish (flesh-color in life) basally; 
iris dark brown; feet dusky; length (skins), 66-73 (69); wing, 37-40 
(38.7); tail, 19.5-20.5 (20); exposed culmen, 13.5-15 (14.3).¢ 
Adult female—Above metallic bronze-green or greenish bronze 
(usually much more bronzy than in adult male); remiges brownish 
slate or dusky, very faintly glossed with purplish; middle pair of 
rectrices dull bronze-green or greenish bronze, sometimes with 
terminal portion (more or less extensively) purplish dusky or 
a Ten specimens. 
