41*0 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Vermivora rubricapUla Swainson and Richardson, Fauna Bor.-Am., ii, 1831, pi. 

 42, upper fig.— Jakdine, ed. Wilson's Am. Orn., i, 1832, 407.— Bonaparte, 

 Geog. and Comp. List, 1888, 21.— Nuttall, Man. Orn. U. S. and Can., 2d 

 ed., i, 1840, 472.— Keinhardt, , Vid. Med. Nat. Forh., 1854, 82 (Green- 

 land).— Brewer, Proc. Bost., Soc., vi, 1856, 4 (descr. nest and eggs). 



Sylvicola rubricapUla Richardson, Rep. Brit. Assoc, for 1836 (1837), 171. 



Helinaia rubricapUla Audubon, Synopsis, 1839, 70; Birds Am., oct. ed., ii, 1841, 

 103, pi. 113. 



IHelmitheros] rubricapUla Bonaparte, Consp. Av., i, 1850, 315. 



Helmitheros riibrica-pillus Sclater, Proc. Zool. Soc. Lond., 1856, 291 (Cordova, 

 Vera Cruz) . 



Hlelminihophaga'] rubricapUla Oabanis, Mus. Hein., i, 1850, 20.— Sclater, Proc. 

 Zool. Soc. Lond., 1859, 363 (Jalapa, Vera Cruz). 



Mniotilta rubricapUla Reinhardt, Ibis, 1861, 6 (Gotthaab and Fiakenaesset, 

 Greenland, 2 specimens). 



JSelminihophila rubricapUla Faxon, Auk, xiii, July 1896, 263.— American Orni- 

 thologists' Union Committee, Auk, xiv, 1897, 130. 



Sylvia Imcogastra Stephens, Shaw's Gen. Zool., x, 1817, 622 (based on Sylvia 

 ruficapilla Wilson). 



Syliria naahvillei Bonnaterre and Vieillot, Enc. M6th., ii, 1823, 451. 



[Helminthoplmga ruficapUla.'] var. ocularis Ridgway, in Baird, Brewer, and Eidg- 

 way's Hist. N. Am. Birds, i, 1874, 191 (Chicago, Illinois; coll. U. S. Nat. 

 Mus.). 



HELMINTHOPHILA RUBRICAPILLA GUTTURALIS (Ridgway). 

 CALAVERAS ■WABBIER. 



Similar to II. r. ruhricapilla, but olive-green of rump and upper 

 tail-coverts brighter, more yellowish, yellow oi under parts brighter, 

 lower abdomen more extensively whitish, and greater wing-coverts 

 lighter, more yellowish olive-green.^ 



Adult mafe.— Length (skins), 102.9-120.6 (113.3); wing, 58.9-62.5 

 (60.2); tail, 43.2-47.7 (45.5); exposed culmen, 9.4-10.2 (9.6); tarsus, 

 16.5-17.3 (16.8).* 



Adult female.— Length (skins), 97.8-104.1 (102.1); wing, 53.8-65.6 

 (54.6); tail, 38.9-41.1 (40.4); exposed culmen, 8.6-9.6 (9.1); tarsus, 

 16.3-17 (16.5).' 



Western United States, breeding on high mountains, from the 

 Sierra Nevada (Calaveras Co., California) to British Columbia (Vernon, 

 Nelson, Okanogan district, etc.), eastward to eastern Oregon (Fort 

 Klamath), northern Idaho (Fort Sherman), etc.; southward during 

 migration to extremity of Lower California, and over western and 

 northern Mexico, and southeastward to Texas (San Antonio; Tom 

 Green County; Concho County). 



'In many specimens one or more of the characters given above fail of verification, 

 but m no case, so far as the material examined indicates, do they all fail. 

 ^ Six specimens. 

 'Three specimens. 



