PASSERBS— TROGLODYTIDAE— CATHERPES MEXICANUS. 181 



^ CATHERPES MEXICANUS (Swaius.), var. GONSPERSUS, Ridg, 

 IVhite-throated Rock IVren. 



Catherpes mexicanus var. conspersus, Ridg., Am. Nat., vii, 1872, 2. — Bd., Brew., &, 

 Ridg., N. A. Birds, i, 1874, 139, pi. viii, f. 4.— Yakrow & Henshaw, Rep. 

 Om. Specs., 1872, Wheeler's Exped., 1874, 9.— Henshaw, An. Lye. Nat. 

 Hist. N. Y., xi, 1874, S.—Id., An. List Birds Utah, 1872, Wheeler's Exped., 

 1874, 41.— J(7., Rep. Orn. Specs., 1873, Wheeler's Exped., 1874, 101. 



Troglodytes mexicanus, Cass., Birds Cal. & Tex., 1854, 173, pi. 30. 



Catherpes mexicanus, Bd., Birds N. A., 1858, 356. — Id., Rev. Ain. Birds, 18G4, 111 



Xantus, Proc. Acad. Nat. Sci. Phila., 1859, 197.— CouES, Proc. Acad. Nat. 

 Sci. Phila., 1866, 77.— Cooper, Birds Cal., i, 1870, 66.— Allen, Bull. Miis. 

 Comp. Zotil., 1872, 175 (near Colorado City).— Coues, Key N. A. Birds, 1872, 

 85.— Aiken, Proc. Bost. Soc. Nat. Hist., 1872, 196 (Middle Colorado). 



Much has recently been added to cm- knowledge of the range of this 

 species. By our parties it has been met with in Utah, Colorado, New 

 Mexico, and Arizona. In Utah, I only detected it in the extreme southern 

 portion of the Territory, and supposed this to be about its northern limit. 

 In Colorado, however, it extends several degrees ftirtlier north, and was met 



