208 



NOETH AMERICAN BIRDS. 



Only a trace of white on luings, or none at all. 

 Above indigo-blue. Wing, 2.10 ; tail, 1.70. Hab. Costa Rica and Gua- 

 temala var. in or n a t a .' 



Compsothlypis gutturalis, Cabanis {Panda gut., Baird, Eev. Am. B.), and 



Conirostram supercUiosum, Hartlaub {Panda 

 superciliosa, Baird, Eev.), have been referred 

 by later systeniatists to this genus ; but they 

 are niucli more closely related to Conirostrum, 

 — a genus usually assigned to the Ccerehida\ 

 The " P." gutturalis is confined to Costa Eica ; 

 but " P." superciliosa is a species of the 

 table -lands of Mexico, and likely to be de- 



Parula anuricana, Bouap. ^g^^g^| • ^^ ArlzOUa Or NcW McxicO. TllC chaV- 



acters of this species are as follows : — 



Conirostrum siiperciliosum, Hartl. R. Z. 1844, 215. Whole dorsal region, including 

 rump, olive-green ; rest of upper parts ashy. Anterior half beneath yellovv^, with a cres- 

 centic bar of chestnut-brown across the jugulum ; posterior lower parts white, ashy later- 

 ally. A conspicuous superciliary stripe of white. Wing, 2.60 ; tail, 2.10. 



Parula americana, Bonap. 



BLUE YELLOW-BACKED WARBLER. 



Parus americanus, Linx. Syst. Nat. 10th ed. I, 1758, 190. Motacilla am. Gmelin. Sylvia 

 am. Lath., Aud. Sylvicola am. Rich., A^^d. — Jones, Nat. in Bermuda, 1839, 59. 

 Parula am. Box. List Birds N. Am. 1838. — Go.ssE, Birds Jam. 1847, 151 (Jamaica). — 

 Baiku, Birds N. Am. 1858, 238 ; Rev. 169. — Sclater, P. Z. S. 1857, 202 (Xalapa). — 

 Ib. Ibis, 1859, 10 (Guatemala). — Ib. Catal. 1861, 26, 163. — Newton, Ibis, 1859, 113 

 (Santa Cniz ; winter). — Cassin, Pr. A. N. S. 1860, 376 (St. Thomas). — Gundlach, 

 Cab. Jour. 1861, 326 (Cuba ; very common). Compfiot.hlijpis am. Cab. Mus. Hein. 

 1850, 20. — Ib. Join-. Ill, 1855, 476 (Cuba). Ficcdida ludoviciana, Brisson. Mota- 

 cilla lad. Gm. Motacilla equcs, Bodd. Sylvia torqnata, Vieill. Thryothorus torq. 

 Stephens. Sylvia pusilla, Wils. Sylvicola pus. Swains. 



Figures : AuD. Orn. Biog. I, pi. xv. — Ib. Birds Am. II, pi. xci. — Vieill. Ois. Am. II, 

 pi. xcix. — Wils. Am. Orn. IV, pi. xxviii. — Buffon, pi. enl. dccxxxi, fig. 1 ; dccix, 

 fig. 1. 



Sp. Char. Above blue, the middle of the back with a ]iatch of j-ellowish-gruen. Be- 

 neath yellow anteriorly, white behind. A reddish-brown tinge across the breast. Lores 

 and space round the eye dusky ; a small white spot on either eyelid ; sides of head and 

 neck like tlie crown. Two conspicuous white bands on the wings. Outer two tail-feath- 

 ers with a conspicuous spot of white. Female similar, with less brown on the breast. 

 Length, 4.75 ; wing, 2.34; tail, 1.90. Nest of long moss. 



Hab. Eastern Province of United States, north to the Lakes (" Greenland "), west to 

 the Missouri Valley ; in winter, south to Guatemala (not seen on the west coast of Mexico). 

 West Indies; Bahamas; Cuba; Jamaica; St. Croix; St. Thomas; Jalapa, Guatemala 

 (Sclater) ; Orizaba, winter (Sumichrast) ; Yucatan (Lawrence) ; Porto Rico and Inagua 

 (Bryant). 



1 Parula inornata, Baird, Rev. Am. Birds, I, 1865, 171. 



