BIEDS OP NOETH AND MIDDLE AMBEICA. 703 



Scops ado, var. maccalK Ridqway, in Baird, Brewer, and Ridgway, Hist. N. 



Am. Birds, iii, 1874, 49, 52 ("Camp 118, New Mexico"=Bill Williams Fork, 



Arizona). 



Scops trichopsis^ (notS. trtcftopsis Wagler) Ridgwat, Proc. U. S. Nat. Mus., i, 1878, 



114, part (descr. of adult male from "New Mexico, " i. e. Arizona; monogr.). 



Scops tridiopsis Ridgway, Proc. U. S. Nat. Mus., iii, 1880, 191, part; Norn. N. Am. 



Birds, 1881, no. 403, part.— Coues, Check List, 2d ed., 1882, no. 470, part. 

 S[cops] trichopsis ? Coues, Key N. Am. Birds, 2d ed., 1884, 506, part. 

 (?) [Scops asio.] Subsp. S. Scops trichopsis Shahpb, Cat. Birds Brit. Mus., ii, 



1875, 119, part (w. Mexico). 

 Scops asio trichopsis ? Beewstee, Bull. Nutt. Om. Club, vii, 1882, 33, part. 

 Scops asio trichopsis Beewstee, Bull. Nutt. Om. Club, viii, 1883, 36 (Camp Lowell, 



Arizona). 

 Megascops asio trichopsis Ridgway, Proc. U. S. Nat. Mus., viii, Sept. 2, 1885, 355, 

 part.— American Oenithologists' Union, Check List, 1886, no. 373/, part. — 

 Scott, Auk, iii, 1886, 423 (San Pedro slope of Santa Catalina Mts., Arizona).— 

 Bendiee, Life Hist. N. Am. Birds, (i), 1892, 368, part, pi. 12, fig. 11 (egg).— 

 Rhoads, Proc. Ac. Nat. Sci. Aila., 1892, 116 (near Tucson, Arizona).— Has- 

 BEOUCK, Auk, X, 1893, 251, 257, part (geog. range). 

 M[egascops] asio trichopsis Ridgway, Man. N. Am. Birds, 1887, 261, part. 

 Megascops asio cmeraceus Ridgway, Auk, xii, no. 4, Oct., 1895, 390, in text (based 

 on M. a. tridiopsis Ridgway, Man. N. Am. Birds, and therefore including 

 also 0. a. aikeni; but type from Fort Huachuca, Arizona; coll. IT. S. Nat. 

 Mus.).— Ameeican Oenithologists' Union, Check List, 2d ed., 1895, no. 

 373, part.^SwAETH, Pacific Coast Avifauna, no. 4, 1904, 8 (Huachuca Mts., 

 Arizona, below 6,500 feet.). — Hunn, Auk, xxiii, 1906, 421 (Silver City, s. w. 

 New Mexico). 

 M[egascops] asio dneraceus Ridgway, Man. N. Am. Birds, 2d ed., 1896, 261, 592, 



part. 

 Otits a[sio] cmeraceus Stone, Auk, xx, July, 1903, 275. 



OtiLs asio dneraceits Ameeican Ornithologists' Union Committeb, Auk, xxv, 

 July, 1908, 372; Check List, 3d ed., 1910, 173.— Swarth, Univ. Calif. Pub. 

 Zoology, vii, no. 1, 1910, 2, in text (crit.). 

 Scops dneracea Salvin and Godman, Biol. Centr.-Am., Aves, iii, 1897, 19. 

 [Scops'] dneracea Shaepb, Hand-list, i, 1899, 289. 



Otus asio gilmani Swarth, Univ. Calif. Pub. Zool., vii, no. 1, May 26, 1910, 1 

 (Blackwater, Pinal Co., Arizona; coll. Mus. Univ. Cahf.). — ^American Or- 

 nithologists' Union Committee, Auk, xxix, 1912, 382. 



OTUS ASIO XANTUSI (Brewster). 



XANTUS'S SCREECH OWL. 



Similar to 0. a. dneraceus but vermiculations of upper parts finer 

 and blacMsh streaks narrower, size smaller, and toes more scantUy 

 feathered. 



Adult male.— Length. (sMns), 168-191 (177); wing, 140.5-150.5 

 (144.9); tail, 68.5-75 (71.4); culmen, from cere, 12.5-13.5 (12.8)." 



Adult female.— Length, (skins), 176-186.5 (181.2); wing, 147-152.5 

 (149.7); tail, 76-77.5 (76.7); culmen, from cere, 13.5-14 (13.7).'' 



o Five specimens. b Two specimens. 



