612 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Henicorhina leucoiitlcta Boucard, Cat. Ois. Guat., 1878, 29. — Salvin and Godman, 

 Biol. Centr.-Am., Aves, i, 1879, 79, part (Mexican and Guatemalan references 

 and localities).— Ferrari-Perez, Proc. U. S. Nat. Mus., ix, 1886, 136 (Teziut- 

 lan, Puebla). 



Cyjjhorinus Inicost ictus Lawrence, Bull. U. S. Nat. Mus., no. 4, 1876, 13 (Gui- 

 chicovi, Oaxaca). 



HENICORHINA PROSTHELEUCA PITTIERI (Cherrie). 



PITTIERS WOOD WREN, 



Similar to IT. p. prosfhele^icd, but coloration darker and brig-hter, 

 the back more chestnut, rump bright chestnut, pileum browner (some- 

 times chestnut-brown), flanks bright brown (deep russet), and lower 

 abdomen and anal region more decidedly tawny; feet larger (at least 

 relatively). 



Adult mcde.—'Length (skins), 88-100 (98); wing, 51-60 (56.5); tail, 

 21-28 (26.1); exposed culmen, 11-16 (11.8); tarsus, 22.5-24 (23.5); 

 middle toe, 11-17 (16)." 



Adult fewide.— Length (skins), 95-105 (101); wing, 52-53.5 (52.8); 

 tail, 23.5-25.5 (24.2); exposed culmen, 14-16 (14.8); tarsus, 21.5-22 

 (21.8); middle toe, 14.5-15 (14.8).^ 



Costa Rica (Angostura; Turrialba; Tucurriciue; Terraba; Jimenez; 

 Boruca; Siguerres; San Jose; San Carlos; Orosi; Val; Talamanca) to 

 Isthmus of Panama (Panama; Loma de Leon). 



Cyphorinus prostheleucns (not Scytalopus prosiheleticus Sclater) Lawrence, Ann. 



Lye. N. Y., vii, 1861, 320 (Isthmus Panama). 

 Hemcorhma prostheleuca Sharpe, Cat. Birds Brit. Mus., vi, 1881, 286, part (Costa 



Pica; Veragua). — Cherrie,- Proc. U. S. Nat. Mus., xiv, 1891, 518 (Costa 



Rica; crit. ). — Bangs, Proc. New Engl. Zool. Club, iii, 1902, 55 (Volcan de 



Chiriqui, 5,700 ft.). 



«Six specimens. 

 '^ Three specimens. 



Specimens from the Isthmus of Panama are smaller than those from Costa Rica, 

 their average measurements comparing as follows: 



I can discern no difference in coloration. The Costa Rican series includes one 

 (from Terraba) labeled, in Mr. Cherrie's handwriting, "Henicorhina j)it(ieri Cher- 

 rie;" this differs from three specimens (all belonging to the Field Columbian 

 Museum) labeled by Mr. Cherrie as H. prostheleuca only in larger size and some- 

 what lighter or more rufous hue of the color of the back, etc. A male from Tala- 

 manca in the National Museum collection is quite as large (in .some measurements 

 even larger), while another from the same locality is decidedly smaller. Therefore 

 it would aeem that there is much individual variation in size. 



