niRDR — SYLVICOMDAE — OEOTnLYPIS TRICIIAS. 



211 



B. — Tail roumled. lleml all ronml ash ; the J'eathers of the chin iiml tliroat black with asliy 

 margins. 

 A black patfli on the fore part of breast ; lores dusky ; no white alxmt the 



eye (r. 2^hiU((lcljjhi(i.. 



Fore part of breast like throat ; forehead and lores black ; eyelids with a white 

 patch G. macgillioraiji. 



Comparative measurements of species. 



GEOTHLYPIS TRICHAS, C a b a n i s 



Maryland Vellow-throat. 



Turi/iis /ric/tiu, Linn. Syst. Nat. 1, 1766, 293.— Gmelin, Syst. Nat. I, 1788. 



S^lv\a Irichas, L.itham, Ind. Orn. II, 1790. — Vieillot, Ois. Am. Sept. IT, 1807, 28 ; pi. .vNviii & xxix. — Ann. Orn. 



Biog. I, 1832, 120 : V, 1838, 403, pi. 23 & 240. 

 Ficeclula trichax, Brisson, Orn. 

 Oeollilypis trichas, C.ibanis, Mus. Ilein. 1850, 10. 

 Ficedula marilandica, Brisson, Orn. Ill, 1760, 500. 

 Sylvia marilandica, Wilson, Am. Orn. 1, 1808, 88 ; pi. vi, C 1. 



Trichas marilandica, Bon. List, 1838.— lis. Consp. 1850, 310.— Atm.Syn. 183!), 65.— Ib. Orn. Biog. II, 1841, 78; pi. 102. 

 Regulua mystaceus, Stkphens, Shaw, Zool. Birds, XIII, ii, 182G, 232. 

 Trichas personatus, Swainson, Zool. Jour. Ill, 1827, 167. 

 Sylvia roscoe, A no. Orn. Biog. I, 1832, 124 ; pi. 24. (Young male.) 

 Trichas roscoe, Nuttall, Man. 1, 2d ed. 1840, 457. 

 Trichas brachydactyla, Swainson, Anim. in Menag. 1838, 295. 

 BuFFON, PI. enl. 709, f. 2. 



Sp. Cii. — Upper parts olive green, tinged with brown towards the middle of the crown ; chin, throat, and breast as far as the 

 middle of the body, with the under tail coverts biighl yellow. Belly dull whitish buff. Sides of body strongly tinged with 

 light olive brown ; under coverts glossed with the same. A band of black on the forehead, (about .20 of an inch wide in the 

 middle,) passing backward so as to cover the cheek and ear coverts, and extending a little above the oyo ; this band bordered 

 behind by a sufifuaion of hoary ash, forming a distinct line above the eye, and widening behind the ear coverts into a larger 

 patch, with a yellow tinge. In winter dress, and in the female, without the black mask, the forehead tinged with brown, 

 the yellow ofthe tliroat less e.Ytended, the eyelids whitish, and an indistinct superciliary line yclloivish. Length of male, 

 5.50; wing, 2.40 ; tail 2.20. 



Ilab. — North America from Atlantic to Pacific. 



The wings of this species are short and much rounded ; they reach a little beyond the basal 

 third of the tail. Thi.s is considerably {,aadiiated, the outer feather about .40 of an inch 

 31b 



