810 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult male. —Length, (skins), 124-142 (133); wing, 99-109.5 (105.5); 

 tail, 47.5-53 (50); culmen, from cere, 8-9 (8.5).*^ 



Adult female. — Length (skins), 115-139 (129); wing, 102-109.2 

 (104.9); tail, 45.5-52.5 (49.2); culmen, from cere, 8-9.5 (8.7).° 



Southern Lower California (Miraflores; Victoria Mountains). 



Micrathene whitneyi (not Athene whitneyi Cooper) Belding, Proc. U. S. Nat. Mus., 

 V, 1883, 549 (Miraflores, s. Lower California; notes). — American Ornitholo- 

 gists' Union, Check List, 1886, no. 381, part. 



M[icrathene] whitneyi Coues, Key N. Am. Birds, 2d ed., 1884, 576, part. — Ridg- 

 WAY, Man. N. Am. Birds, 1887, 267, part. 



Micropallas whitneyi American Ornithologists' Union Committee, Suppl. to 

 Check List, 1889, 21, part; Check List, abridged ed., 1889, and 2d ed., 1895, 

 no. 881, part; 3d ed., 1910, 178, part.— Bryant (W. E.), Proc. Calif. Ac. 

 Sci., eer. 2, ii, ]S89, 285 (Victoria Mts. and Miraflores, s. Lower California). — 

 Brewster, Bull. Mus. Comp. Zool., xli, pt. i, 1902, 99 (Miraflores, Lower 

 California; crit.). 



MICROPALLAS WHITNEYI IDONEUS Ridgway.6 



TEXAN ELF OWL. 



Similar to M. w. sanfordi in grayness of upper parts and absence 

 of distinct cinnamoneous blotches on under parts,' but under parts 

 with more white and with markings darker. 



Adult male.— Length, (skms), 136-139 (137.5); wing, 108.5-110.5 

 (109.5); tail, 49.5-50 (49.7); culmen, from cere, 8.5-9 (8.7).*^ 



Lower Rio Grande Valley in Texas (Hidalgo, Hidalgo County; 

 Brownsville, Cameron County); south to Puebla (San Salvador el 

 Verde; Tehuacan), Valley of Mexico, and Guanajuato, east-central 

 Mexico ? '^ 



(?) Micrathene whitneyi (not Athene whitneyi Cooper?) Ferrari-Perez, Proc. U. S. 

 Nat. Mus., ix, 1886, 165 (San Salvador el Verde, Puebla; Guanajuato). 



Micropallas whitneyi Sennett, Auk, vi, 1889, 276 (Hidalgo, Texas, April 5, 

 1889). — Salvin and Godman, Biol. Centr.-Am., Aves, iii, 1897, 37, part 

 (Guanajuato; Valley of Mexico; San Salvador el Verde, Puebla). 



MICROPALLAS GRAYSONI (Ridgway). 



SOCORRO ELF OWL. 



SimUar to M. whitneyi, but coloration much browner (the plumage 

 without any gray admixture), ''eyebrows" and lores cinnamon-buff 

 (instead of white), subauricular or post-malar patch buffy (instead 



o Five specimens. 



& New subspecies. (Type, no. 80966, adult male, coll. American Museum, five 

 miles from Hidalgo, Texas, April 5, 1889; F. B. Armstrong.) 



''Two specimens. 



^ Specimens, representing each of the above-mentioned Mexican localities, may 

 be referable to this form. One from Puebla is somewhat darker, however, than the 

 two Texan examples; but without a larger series of specimens the status of Mexican 

 birds can not be determined. (Measurements are given on p. 808.) 



