80 TEOGLODTTID^. 



and again in 1867 ^ that we were unable to distinguish it from Henicorhina leucosticta ', 

 and from this time we have always looked upon the species as indivisible. Prof. 

 Baird ^ ^^, in his ' Eeview of American Birds,' took the opposite view and granted each 

 full specific rank ; but when the characters he relied upon, such as the greater purity 

 of the white colour of the under surface in the southern race, its smaller size, and the 

 difference of the number and size of the spots on the shoulders and neck, are examined 

 by the light of a large series of specimens, it will be seen that they cannot be considered 

 of specific value. 



Southern Mexico seems to be the limit of the northern range of H. leucosticta, where 

 it is doubtless restricted to the lowland hot forests of the district. Prof. Sumichrast ^ 

 indeed speaks of it as found in the hot, temperate, and alpine regions of the State of 

 Vera Cruz ; but we have no doubt, from our knowledge of the ranges of this species 

 and of H. leucophrys in Guatemala, that he here has looked upon both as one, and that 

 the birds noticed by him in the alpine region were of the latter species. In Guate- 

 mala we only found it in the low-lying forests of Northern Vera Paz, and also on the 

 Pacific side of the mountains in the forests covering the slopes of the volcanos of 

 Agua and Fuego. It is thoroughly Wren-like in its restless movements, keeping to 

 the undergrowth of the virgin woods. 



2. Henicorhina leucophrys. 



Troglodytes leucophrys, Tsch. Arch. f. Naturg. Jahrg. x. i. p. 283 '. 

 Heterorhina leucophrys, Baird, Kev. Am. B. i. p. 118^. 

 Cyphorhinus leucophrys, Lawr. Ann. Lye. N. Y. ix. p. 92 ^ 

 Henicorhina leucophrys, Salv. P. Z. S. 1870^ p. 181 *. 

 Troglodytes guttatm, Hartl. Syst. Yerz. d. Ges. Mus. p. 28 \ 

 Cyphorhinus prostheleucus, Salv. & Scl. Ibis, 1860^ p. 272° (nee Selater). 

 Heterorhina prostheleuca, Sumichrast, Mem. Bost. Soe. N. H. i. p. 545'' (partim). 

 Cyphorhinus griseicollis, Scl. & Salv. Ibis, 1860^ p. 397' (nee Lafr.). 

 Heterorhina griseicollis, Baird, Kev. Am. B. i, p. 117" (nee Lafr.). 



H. hueostictm simiUs, sed corpore subtus plumbeo nee albo et tectricibus alarum immacidatis distingnenda. 

 (Descr. exempl. ex Volcan de Agua. Mus. nostr.) 



Hah. Mexico, Jalapa [de Oca% Moyoapam, Vera Cruz (Sumichrasf); Guatemala, 

 Volcan de Agua ^ 8, Volcan de Fuego, Totonicapam {0. S. & F. D. G.) ; Costa Eica, 

 San Jose (v. Frantzms% Volcan de Irazu {Rogers); Panama, Mina de Chorcha^ 

 Cordillera del Chucu, Chitra, Calobre, Calovevora (^rc^4)._CoLOMBiA; Venezuela; 

 Ecuadoe; Peeu^; Bolivia. 



Though described in 1844 by Tschudi from specimens obtained by him in Peru 

 where it has since been found by Jelski*, this species was many years before it found 



* Taczanowski, P. Z. S. 1874, p. 504. 



