BIRDS OF NORTH AND MIDDLE AMERICA. 



100 



Adnli male.^Lengih (skins), 190-222 (203); wing, 98-107..') 

 (103.1); tail, '93-108.5 (100.3); exposed eiilineu, 11-13 (12.1); 

 tarsus, 19-23 (21.1); middle toe, 15-17 (10. D." 



Adult femalf.~T.eni:^i\i (skins), 190-212 (197); wing, 97-108 (100.3); 

 tail, 92-104.5 (94.6); exposed culmen, 11.5-12.5 (11.8); tarsus, 

 20-22.5 (21.2); middle toe, 15-17 (15.9).'' 



Western IMexico, m States of vSonora (Alamos), Sinaloa (Plomosas), 

 Chihuahua (TTacienda San Rafael; Bravo; Mina Abundancia; 

 Durasno), Jalisco (Tonila; San Sebastian), Michoacan (Mount 

 Tancitaro; Patamban; Patzcuaro), Morelos (I luitzilac, December) 

 and western Oaxaca (Tlapancingo, December) ; Tres Marias Islands. 



'Myiadestcs ohacurKfi (nut of Lafresnaye) Baird, Rpvi(^\v Am. P>inls, 1866, 430, part 



(Tonila, .Talisco; Tres Marias). — '.Ikayson, Proc. Bost. Hoc. N. H., xiv, 1871, 



277 (Tres Marias).— Iawrence, Mem. Bost. Soc. N. II., ii, 1874, 27.3 (Tonila; 



Tres Marias). 

 [Myiailei^let,] obscnrii.t Sclatkr and Sat.vix, Nom. Av. Neotr., 187:5, 4, ])art. 

 Mlyindestrnl obsninis H MKi), Brkwf.k, and IhixavAY, IlisI . N. .\ni. P.irds, i, 187-1, 



409, part. 

 Myiadectes obsciirus Salvin and Godman, Biol. Centr.-.Vni., Aves, i, 187i), 40, 



part (Tres Marias). — Siiarpk, Cat. Birds Bri(. Mii';.. vi, 1881, :)7;', ])art (in 



synonymy). 

 Mlijadestea] obscunts var. occidentnlh STK.i\K(iKR, Free l'. S. Nal. Mns., iv, Apr. 



13, 1882, 371 (diagnosis). 

 Myndcstes obsciirus var. occidentalis Stejneger, Pror. IT. S. Nat. Mus., iv, Apr. 1:1, 



1882, 372, (Tonila, Jalisco; coll. U. S. Nat. Mus.). 

 M[yndestes] obscurus occidentalis Ridciway, Man. N. Am. Birds, 1887, 573. 

 Myadestes obscunis occidentalis ,1ouy, Proc. U. S. Nat. Mus., xvi, 1894, 774 (San 



Marcos, Jalisco; crit.; song). 

 [Myiedestes] occidentalis Sharpe, Hand-list, iv, 1903, 113. 

 M\yadestes] obscurusvur. insiilaris Stejneger, Proc. V. S. Nat. ]Mus., iv, A]ir. l:'>, 



1882, 371 (diagnosis). 

 Myadestes obscurus var. insiilaris Stejneger, Proc. U. S. Nat. Mus., iv, Apr. 1:5, 



1882, 373 (Tres Marias Islands, -v. Mexico; c.ll. U. S. Nat. Mus.). 

 Mlyadestes] obscurus insuiaris Ruigway, Man. N. Am. Birds, 1887, 573. 



« Twenty-two specimens. 

 b Eight specimens. 

 Specimens from different 

 follows: 



igr;i]iliic areas compnre in average measurements as 



Locjilit V. 



Ex- ! 

 Wing. Tail. posed iTar.sus. **f'^\'J'" 



.MALE; . 



Sevpti adult ni;i,loa from Jalisco and Miclioacan . 

 Sevea adult malos from Sonora and Diihuahiia . 

 Kight adult males from Tres Marias Islands. . . 



fkmai.es. 



Four uilult females fi-oin .laliseo and Miclioacan. 

 Two adult females from Sonora and Chihuahua. 

 Three adult females from Tres Marias Islands. . 



