BIRDS OP NORTH AND MIDDLE AMERICA. 381 



(Patzcuaro), Guerrero (Chilpancingo), and Oaxaca (Mount Zampoal- 

 tepec); Guatemala.' 



Diglossa baritula Wagler, Isis, 1832, 281 (Mexico; ooll. Wiirzburg Mus.).— 

 Hahn, Orn. Atlas, xii, 1834-36, pis. 1, 2.— Haetlaub, Rev. Zool., 1842, 

 56.— Bonaparte, Consp. Av., i, 1850, 401.— Reichenbach, Plandb., ii, 1853* 

 233, pi. 554, flgs. 3762-3763.— ScLATBE, Proc. Zool. Soc. Lond.,' 1856, 286 

 (Cordova, Vera Cruz); 1859, 364 (Jalapa, Vera Cruz), 376 (.luquila and 

 Totontepec, Oaxaca); 1864, 173 (valley of Mexico); Cat. Am. Birds, 1862, 

 48 (Jalapa; Guatemala); Ibis, 1875, 207 (monogr.); Cat. Birds Brit. Mus-i 

 xi, 1886, 3 (near City of Mexico; Jalapa; Quesaltenango, Calderas, Coban] 

 and Santa Cruz Mts., Guatemala) .—Sclatee and Salvin, Ibis, 1859, 14 

 (Guatemala).— Oassin, Proc. Ac. Nat. Sci. Phila., 1864, 273 (monogr.)— 

 Shmichrast, Mem. Boat. Soc. N. H., i, 1869, 548 (alpine region. Vera Cruz).— 

 Duges, La Naturaleza, i, 1869, 140 (Guanajuato, Mexico).— Salvin, Cat. 

 Strickland Coll., 1882, 174 (Guatemala).— Salvin and Godman, Biol. Centr.- 

 Am., Aves, i, 1883, 242.— Ferrari-Perez, Proc. U. S. Nat. Mus., ix, 1886, 

 140 (San Salvador el Verde and Huejotringo Puebla). 



D[iglossa'] baritula Gray, Gen. Birds, i, 1846, 157, pi. 42.— Cabanis, Mus. Hein 

 1,1850,97 (Mexico). 



[Diglossa] baritula Gray, Hand-list, i, 1869, 118, no. 1474.— Sclater and Salvin, 

 Nom. Av. Neotr., 1873, 15. 



Agrihrhinus dttaceus Bonaparte, Nuov. Ann. Seienz. Nat. Bologna, i, 1838, 408 

 (Mexico; coll. Florence Mus.).— Lafresnaye, Rev. Zool., Oct., 1839, 292, 

 in text. 



Uncir[^ostrum^ sUtaceum Lafresnaye, Rev. Zool., Oct., 1839, 292, in text. 



Undrostrum brelayi Lafresnaye, Rev. Zool., 1839, 100 (Mexico; coll. Charles 

 Brelay). 



Agrtiorhinus oUvaceus Fraser, Proc. Zool. Soc. Loud., 1840, 22 (Mexico?; type 

 in Brit. Mus.). 



DIGLOSSA PLUMBEA Cabanis. 

 COSTA RIGAN DIGLOSSA. 



Adult male. — Above plain deep bluish slate color, darker (bluish 

 slate-black) on pileum, paler (bluish slate-gray or deep plumbeous) on 

 rump; remiges and rectrices black with bluish slate-gray edgings; 

 lores black; sides of head otherwise like pileum, but rather darker; 

 under parts plain slate-gray, paler on abdomen; maxilla brownish 

 black; mandible light brownish basally, dusky terminally; legs and feet 

 horn brownish (in dried skins); iris brown; length (skins), 105.4-110.2 

 (107.7); wing, 63.8-56.4 (64.9); tail, 39.6-44.5 (42.7); exposed culmen, 

 9.9-10.7 (10.2); tarsus, 17.6-18.8 (18); middle toe, 11.2-12.2 (11.4).' 



Admit female. — Above deep olive-gray or grayish olive, the rump 

 more grayish; under parts deep olive-grayish, paler and tinged with 



' The single Guatemalan specimen, an adult male, differs decidedly from all the 

 adult males from Mexico (eleven in number) in having the entire throat slate-gray 

 and the axillars and under wing-coverts pale buffy or rusty whitish instead of being 

 of the same deep rufous-cinnamon color or russet as the under parts. According to 

 Dr. Sclater, however, "Guatemalan specimens have less plumbeous on the throat, 

 thereby approaching D. sittcddes." Evidently, therefore, Guatemalan specimens 

 require careful comparison with Mexican examples. 



'Four specimens, 



