BIRDS OF WORTH AND MIDDLE AMERICA. 395 



dull grayish black washed with dull blue; adult female less yellowish 

 green than that of D. c. cayana^ with blue of head deeper and less 

 greenish. 



AdMlt male. — Lores, short triangular postocular streak, and back 

 black, the last sometimes slightly glossed or overlaid with dull bluish; 

 chin and throat dull grayish black or blackish gray, tinged or glossed 

 with dull blue; wings and tail black, the middle wing-coverts broadly 

 tipped with bright blue, the greater coverts and tertials broadly, the 

 secondaries and primaries in part (sometimes also median rectrices), 

 narrowly, edged with the same; rest of plumage bright blue, usually 

 cobalt or ultramarine when viewed toward the light,^ changing to more 

 greenish blue when viewed from the light; concealed portion of upper 

 tail-coverts black, the plumage of under parts grayish beneath the sur- 

 face; bill brownish black terminally, more brownish basally, especially 

 on mandible; legs and feet brownish (in dried skins); length (skins), 

 102.9-119.9 (110.7); wing, 60.2-66.3 (63); tail, 41.1-14.7 (42.7); exposed 

 culmen, 12.4-13.7 (13); tarsus, 15.2-17 (16); middle toe, 10.2-10.9 

 (10.7).^ 



Adult female. — Yellowish grass green, brighter on rump and upper 

 tail-coverts, rather lighter (approaching apple green) on under parts; 

 head greenish blue, the throat light bluish gray; lesser wing-coverts 

 darker greenish blue than head, the centers of feathers (like those of 

 pileum) darker; bill and feet as in the adult male, but the former more 

 distinctly and extensively brownish basally; length (skins), 105.4-117.3 

 (113); wing, 62-64.3 (63.5); tail, 40.9-44.6 (42.7); exposed culmen, 13- 

 14 (13.5); tarsus, 15.5-16.5 (16); middle toe, 10.9-11.4 (11.2).^ 



Isthmus of Panama (Panama Railroad) to eastern Nicaragua (Grey- 

 town; Rio Escondido; Chontales, etc.). 



Dacnis ccsrebicolor (not of Sclater) Lawrence, Ann. Lye. N. Y., vii, 1861, 219 

 (Panama E. E. ). 



Dacnis uUramarina Lawrence, Proc. Ac. Nat. Sci. Phila., xvi, 1864, 106 (Panama 

 R. R.; coll. G. N. Lawrence?); Ann. Lye. N. Y., viii, 1865, 180 (Greytown, 

 Nicaragua); ix, 1868, 97 (Angostura, Costa Rica).— Sclater and Salvin, 

 Proc. Zool. Soc. Lond., 1864, 348 (Panama B. R.).— Cassin, Proc. Ac. Nat. 

 Sci. Phila., 1864, 269 (monogr.).— Salvin, Proc. Zool. Soc. Ijond., 1870, 185 

 (Chepo, Isthmusof Panama).— Berlepsch, Journ. fiirOrn., 1873, 236(crit. ).— 

 Salvin and Godman, Biol. Cent. -Am., Aves, i, 1883, 244.— Zeledon, Anal. 

 Mus. Nae. Costa Rica, i, 1887, 108 (Las Trojas de Pun tarenas).— Richmond, 

 Proc. U. S. Nat. Mua., xvi, 1893, 487 (Rio Escondido, Nicaragua).— Cherrie, 

 Expl. Zool. Costa Rica, i, Aves, 1893, 17 (Terrdba, s. w. Costa Rica). 



[Dacnis] uUramarina Sclater and Salvin, Nom. Av. Neotr., 1873, 16. 



[Dacnis eayana.'] a. Subsp. uUramarina Sclater, Cat. Birds Brit. Mus., xi, 1886, 

 20, in list of specimens. 



' The color of D. c. eayana in the same position is cerulean or turquoise blue, 

 changing to bluish green. 

 * Seven specimens. 

 ' Five specimens. 



