604 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



white streaked or spotted with dusky; rest of under parts as in adult 

 male, but sides more strongly suffused with pale cinnamon-rufous 

 and without intermixture of green; length (skins), 67-77 (72); wing, 

 40.5-41.5 (41); tail, 24-26 (25.2); exposed culmen, 11-12.5 (11.7).« 



Immature jnale. — Similar to the adult female, but sides and flanks 

 glossed with metallic bronze-green; older specimens with one or 

 more dull grayish purple or dull purplish green feathers on throat. 



Highlands of Costa Rica (Volcan de Irazii; Volcan de Turrialba; 

 Las Cruces de Candelaria?; Dota Mountains) and western Panama 

 (Volcan de Chiriqui). 



Selasphorus torridus Salvin, Proc. Zool. Soc. Lond., 1870, 208 (Volcan de Chiriqui, 

 Panama; coll. Salvin and Godman); Cat. Birds Brit. Mus., xvi, 1892, 395. — 

 MuLSANT and Verreaux, Hist. Nat. Ois.-Mouch., iv, livr. 2, 1877, 101. — 

 Elliot, Classif. and Synop. Troch., 1879, 112. — Zeledon, Anal. Mus. Nac. 

 Costa Rica, i, 1887, 122 (Volcan de Irazii, Costa Rica) .—Salvin and Godman, 

 Biol. Centr.-Am., Aves, ii, 1892, 354, pi. 56, figs. 2, 3 (excl. syn. part).— Bou- 

 card. The Hum. Bird, ii, 1892, 73 (Volcan de Chiriqui); Gen. Hum. Birds, 

 ii, 1892, 10 (Volcan de Chiriqui).— Bangs, Proc. New Engl. Zool. Club, iii, 

 1902, 31 (Volcdn de Chiriqui, 10,300 ft.).— Ferry, Pub. 146, Field Mus. 

 N. H., orn. ser., i, no. 6, 1910, 264 (Volcan de Turrialba, Costa Rica; habits). 



[Selasphorus] torridus Sclater and Salvin, Nom. Av. Neotr., 1873, 84. — Mulsant, 

 Ann. Soc. Linn. Lyon, n. s., xxii, 1876, 227.— Sharpe, Hand-list, ii, 1900, 141. 



S[elasphorus] torridus Ridgway, Rep. U. S. Nat. Mus. for 1890 (1891), 341 (diag- 

 nosis, etc.). — Hartert, Das Tierreich, Troch., 1900, 206. 



Selasphorus flammula torridus Cauriker, Ann. Carnegie Mus., vi, 1910, 547 (Volcdn 

 de Irazii and Dota Mts., Costa Rica; crit.). 



SELASPHORUS ARDENS Salvin. 

 GLOW-THROATED HUMMING BIRD. 



Most like S.Jlam.mula but smaller, especially the bill; adult male 

 with middle rectrices mostly if not wholly purplish black (except for 

 the cinnamomeous edging to both webs) and gorget intense (but 

 not brilliant) reddish purple instead of dull rose purple; adult female 

 with lateral rectrices more extensively tipped with pale cinnamon- 

 rufous, middle rectrices broadly edged (for more than basal half) 

 with cinnamon-rufous, and sides of head partly cmnamon-rufous. 



a Three specimens. 



