BIRDS OF NORTH AND MIDDLE AMERICA. 337 



bronze-green, tipped with dull white or pale buffy, the other rec- 

 trices white for basal half (more or less), then dull black, glossed on 

 outer web with bronze-green, the tip white or pale buffy; remiges 

 dusky, faintly glossed with violaceous; suborbital and auricular 

 regions blacldsh brown or dusky, margined above ])y a postocular 

 spot or short stripe of pale cinnamon or buffy and below by a malar 

 stripe of the same; chin and ujij^er throat dusky, the feathers mar- 

 gined or tij)ped with grayish buffy or pale cinnamon; lower throat 

 and upper chest cinnamon-rufous, changing gradually to pale buffy 

 grayish on lower chest, breast, and abdomen (the last tinged with 

 cinnamon-rufous), the sides and flanks deeper buffy grayish, more or 

 less tinged (especially the flanks) with pale cinnamon-rufous; under 

 tail-coverts olive-bronze, broadly margined with cinnamon or cinna- 

 mon-buff; maxilla dull black, mandible whitish (pink or reddish in 

 life?), passing into dusky at tip; iris dark brown; feet pale brownish 

 or dull yellowish (in dried skins) . 



Young (first plumage). — Essentially like adults but lower throat 

 and chest dull buffy grayish instead of tawny, and feathers of upper 

 surface narrowly margined terminally with dull brownish buffy. 



Adult male .—LQngih (skins), 107-f20 (113); wing, 52.5-60 (57.7); 

 tail, 31-38 (34.4); culmen, 28-31 (30.5) .« 



Adult female.— Length (skins), 101-116 (108); wing, 52-57.5 

 (54.4); tail, 31-35.5 (32.9); culmen, 26.5-32 (29.7).^ 



Nicaragua (Rio Escondido), Costa Rica (Angostura; Jimenez; 

 El Hogar; Carrillo; Guacimo; Turrialba, 2,000 feet; Guapiles; 

 Cuabre; Talamanca; Pozo Azul de Pirris; Pozo del Rio Grande) and 

 Panama (Lion Hill; Panama; Paraiso; Bibahiz; Mina de Chorcha; 

 Veragua) ; northwestern Colombia (Rio Dagua) ?; Guatemala? 



Troch[ilus\ ruckeri Bourcier, Proc. Zool. Soc. Lond., 1847, 46 (locality unknown; 

 coll. M. Loddiges). 



Glaucis ruckeri Gould, Mon. Troch., i, Nov., 1851, pi. 11; Introd. Trorh., oct. ed., 

 1861, 39 (Veragua, Panama).— Lawrence, Ann. Lye. N. Y., vii, 1862, 319 

 (Lion Hill, Panama); ix, 1868, 121 (Costa Rica). — Sclater and Salvin, Proc. 

 Zool. Soc. Lond., 1864, 364 (Lion Hill). — Mulsant and Verreaux, Classif. 

 Troch., 1866, 14; Hist. Nat. Ois.; Mouch., i, livr. 1, 1873, 47, part (Veragua).— 

 Salvin, Proc. Zool. Soc. Lond., 1870, 204 (Mina de Chorcha, Panama). — 

 Frantzius, Journ. fiir Orn., 1869, 315 (Costa Rica). — Elliot, Classif. and 

 Synop. Troch., 1879, 8, part ("Central America"). — Ridgway, Proc. U. S. 

 Nat. Mus., iii, 1880, 308 (Panama; Costa Rica). — Zeledon, Cat. Aves de 

 Costa Rica, 1882, 19; Anal. Mus. Nac. Costa Rica, i, 1887, 121 (Angostura 

 and Jimenez, Costa Rica). 



G[laucis] ruckeri Cabanis and Heine, Mus. Hein., iii, 1860, 4, footnote (Verd- 

 gua). 



P[olytmus] ruckeri Gray, Gen. Birds, i, Dec, 1848, 108. 



[Polytmus] ruckeri Gray, Hand-list, i, 1869, 126, no. 1573. 



« Thirteen specimens. ^ Eleven specimens. 



81255°— Bull. 50—11 22 



