264 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Family SYLVIIDAE. Warblers, Gnatcatchers, 

 AND Kinglets. 



Subfamily SYLVIINAE. Warblers. 



Genus ACANTHOPNEUSTE Blasius. 



AcanthopneuMe J. H. Blasius, Naumannia, Vol. VIII, Heft 4-6, 1858 

 [1859?], 313. Type, by subs, desig., Phyllopneuste borealis Blasius 

 (Salvador!, 1881). 



Acaxithopneuste borealis kennicotti (Baird). Kennicott's Willow Warbler. 



1747.] 



Phyllopneuste Kennicotti Baird, Trans. Chicago Acad. Sci., I, Pt. 2, 1869, 

 313 (pi. XXX, fig. 2). (St. Michael's in Norton Sound, Alaska.) 



Range. — Breeds in western Alaska (St. Michael, Nushagak, AUoknagik 

 River, Kowak River, etc.). Winters in southeastern Asia. [A closely related 

 race occurs in northern Asia.] 



Genus LOCUSTELLA Kaup. 



Locustella Kaup, Skizz. Entw.-Gesch. Eur. Thierw., 1829, 107. Type, 

 by monotypy, Sylvia locustella Latham. 



* Locustella ochotensis (Middendorff). Middendorflf's Grasshopper- Warb- 

 ler. [747.1.] 



Sylvia {Locustella) ochotensis Middendorff, Reise Sibir., II, Pt. ii, 1853, 

 185 (pi. xvi, fig. 7). (Mouth of Ouda River, Ockhotsk Sea.) 



Range. — Eastern Asia, from Kamchatka to the Kuriles and Bering Island, 

 south in migration to the Moluccas. Accidental on Nunivak Island, Alaska.' 



Subfamily POLIOPTILINAE. Gnatcatchers. 



Genus POLIOPTILA Sclater. 



Polioptila Sclater, Proc. Zool. Soc. Lond., XXIII, 1855, No. 274 [March 

 27], 11. Type, by orig. desig., Motacilla caerulea Linnaeus. 



Polioptila caerulea caerulea (Linnaeus). Blue-gray Gnatcatcher. [751.] 



Motacilla caerulea Linnaeus, Syst. Nat., ed. 12, I, 1766, 337. Based on 

 the Little Blue-grey Fl3'catcher Edwards, Gleanings, 194. (in Penn- 

 sylvania = Philadelphia, Pa.) 



1 Swarth, Proc. Calif. Acad. Sci., sen 4, XVII, No. 8, July 10, 1928. 



