BIRDS OF NORTH AND MIDDLE AMERICA. 607 
outer web darker and less bronzy green, becoming purplish black 
terminally and rather broadly edged with cinnamon-rufous, the 
inner web very narrowly edged with the same; outermost rectrix 
purplish black, with basal third of shaft, basal portion of inner web, 
and edge of inner web for about basal two-thirds, together with a 
broad tip, pale cinnamon-rufous; the remaining rectrices mostly pur- 
plish black, rather broadly edged on outer web (nearly to tip) with 
cinnamon-rufous; remiges dusky, faintly glossed with violaceous; 
chin and throat dull white, tinged or suffused with buffy (the anterior 
and lateral portions of chin pale cinnamon-rufous or rusty buff), 
the whole throat flecked with small guttate streaks or spots of dusky; 
chest dull buffy white; passing into duller, more grayish, white on 
median portion of breast and abdomen; sides and flanks light rusty 
brownish (nearly russet) slightly glossed or intermixed with bronzy; 
under tail-coverts pale cinnamon-rufous or vinaceous-cinnamon; 
femoral and lumbar tufts buffy white; bill, feet, etc., as in adult 
male; length (skin), 69; wing, 41.5; tail, 26.5; exposed culmen, 11.5.4 
Immature male—Similar to the adult female but (at least in older 
individuals) with one or more feathers of metallic reddish purple on 
throat. 
Highlands of Costa Rica (Volcén de Pods; Volcén de Barba; Las 
Cruces de Candelaria). 
Selasphorus ardens (not of Salvin, 1870) Rrpeway, Proc. U. 8S. Nat. Mus., vi, 
1884, 415 (Costa Rica).—Satvin, Cat. Birds Brit. Mus., xvi, 1892, 398.— 
Satvin and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 356, part (Volc4n de 
Pods and Las Cruces de Candelaria, Costa Rica). 
S[elasphorus] ardens Ripeway, Rep. U. 8. Nat. Mus. for 1890 (1891), 341, part 
(Costa Rica).—Hartert, Das Tierreich, Troch., 1900, 206, part (Costa 
Rica). 
Heuser underwood: (not of Salvin) Harrert, Das Tierreich, Troch., 1900, 
206. 
Selasphorus simonit CARRIKER, Ann. Carnegie Mus., vi, Aug. 29 (i. e., Sept. 7), 
1910, 550 (Volc4n de Barba, Costa Rica; coll. E. A. and O. Bangs). 
SELASPHORUS SCINTILLA (Gould). 
SCINTILLANT HUMMING BIRD. 
Similar in coloration to S. alleni, but much smaller; rectrices much 
broader and more obtuse (especially lateral pair) and with median 
blackish area much broader and extending to base; adult female and 
young with lateral rectrices broadly tipped with cinnamon instead 
of white. 
Adult male——Above metallic golden or bronzy green, the upper 
tail-coverts mostly cinnamon-rufous basally and laterally; rectrices 
cinnamon-rufous, the middle pair with a broad, fusiform mesial stripe 
of purplish black, extending for nearly the entire length, the next 
@ One specimen. 
