BIRDS or NORTH AND MIDDLE AMERICA. 823 



bb. Ooloration clearer and brigliter; smaller (male averaging wing 132.8, tail 104.3; 

 female, wing 127.8, tail 100.1). (Nicaragua to northern Colombia.) 



Lathria unirufa clara (p. 824) 

 aa. General color darker, more castaneous. (Northern Ecuador.) 



Lathria unirufa castaneotincta (exiralimital)'* 



LATHRIA UNIRUFA UNIRUFA (Sclater). 

 MEXICAN LATHRIA. 



Adults {sexes alike). — Above plain deep cinnamon-brown or rus- 

 set, duller on back, the feathers of pileum with paler shafts, the 

 shafts of rectrices deep reddish brown or chestnut; under parts clear 

 bufiy cinnamon, light bufTy russet, or dull tawny-ochraceous, the 

 chest darker and duller, with shafts of the feathers paler; axillars 

 under wing-coverts, and greater part of inner web of remiges (except 

 terminally) clear deep ochraceous-buff ; maxilla deep horn brownish, 

 madil^le paler; iris brown; legs and fee grayish brown or dusky (in 

 dried skins). 



AdvUmale.—l^ength. (skins), 236-248 (242); wing, 136.5-144 (140); 

 tail, 104.5-113.5 (108.9); exposed culmen, 20-22 (21.2); tarsus, 21- 

 24.5 (22.9); middle toe, 15.5-17.5 (16.7).^ 



Adult female.— Length (skins), 230-250 (241); wing, 134-135.5 

 (134.7); tail, 102.5-108 (105.2); exposed culmen, 21-22.5 (21.7); 

 tarsus, 23-24 (23.5); middle toe, 17-18 (17.3).^ 



Southeastern Mexico, in States of Vera Cruz (Playa Vicente; near 

 Orizaba; Tolosa; Buena Vista; Motzorongo), and Tabasco (Teapa) to 

 Guatemala (Choctum; Coban) and British Honduras. 



Lipaugus unirufiis Sclater, Proc. Zool. Soc. Lend., 1859, 385 (Playa Vicente, 

 Vera Cruz; coll. P. L. Sclater); 1861, 211 (s. Mexico; Guatemala); Cat. Am. 

 Birds, 1862, 244 (Choctum, Guatemala).— Salvin and Sclater, Ibis, I860, 

 36 (Coban, Guatemala). — Sclater and Salvin, Exotic Orn., pt. i, 1866, 1, 6, 

 pi. 1. — SuMiCHRAST, Mem. Bost. Soc. N. H., i, 1869, 558 (Vera Cruz, Mexico). 



[Lipangus] iinirufus Gray, Hand-list, i, 1869, 373, no. 5653. 



[Lathria] unirufa Sclater and Salvin, Nom. Av. Neotr., 1873, 56, part. — Sharpe, 

 Hand-list, iii, 1901, 167, part. 



Lathria itnirvfa Sclater, Cat. Birds, Brit. Mus., xiv, 1888, 353, part (Choctum, 

 Guatemala; British Honduras). — Salvin and Godman, Biol. Centr.-Am., 

 Aves, ii, 1891, 129, part. 



o- Lathria urdrxifus castaneotinctiis Hartert, Novit. Zool., ix, no. 3, Dec, 1902, 610 

 (Rio Durango, n. w. Ecuador, 3,500 ft. alt.); Bull. Brit. Orn. Club, xvi, 1905, 13, in 

 text. 



b Ten specimens. 



c Three specimens. 



