Nelson New Birds from Southern Mexico. 159 



Hemiura leucogastra musica, subsp. nov. 

 Palenque Wren. 



Type. No. 166,306, $ ad., U. S. Nat. Mus., Biological Survey Coll. 

 From Teapa, Tabasco, Mexico. Collected March 20, 1900, by E. W. 

 Nelson and E. A. Goldman. 



Distribution. Humid forests along base of Cordillera from Tabasco to 

 northern Guatemala. 



Subspecific characters. Darkest of the subspecies of H. leucogastra ; 

 most like H. I. brachyura from which it differs in darker shade of red 

 dish brown on upperparts, flanks and under tail coverts, and the obso 

 lescence of bars on tail and under tail coverts, as in typical leueogastra. 



Sialia mexicana australis, subsp, nov. 

 Southern Bluebird. 



Type. No. 185,183, $ ad., U. S. Nat. Mus., Biological Survey Coll. 

 From Mt. Tancitaro, Michoacan, Mexico. Collected February 26, 1903, 

 by E. W. Nelson and E. A. Goldman. 



Distribution. Wooded mountains on southern border of the Mexican 

 tableland; From Mt. Orizaba, Puebla, west through Puebla (Tochimilco), 

 Mexico (Mt. Popocatapetl), Morelos (Huitzilac), Michoacan (Mt. Patam- 

 ban and Mt. Tancitaro) to the Sierra Nevada de Colima in southern 

 Jalisco. Breeds above 6,000 feet. 



Subspecific characters. Most like 8. m. occidentalis but larger (largest 

 of the subspecies of S. mexicana). Males with rufous areas lighter, more 

 cinnamon colored, and blue of upperparts richer or more intense than in 

 occidentalis (nearly as in true mexicana); females with top of head, neck 

 and rump deeper blue, rest of back and shoulders darker brown. 



Dimensions of type. Wing, 112; tail, 68; culmen, 13; tarsus, 22. 





