710 Annals of the Carnegie Museum. 



hopping and fluttering about among the low trees and bushes and feeding 

 very much after the manner of the vireos. 



I took a single nest at Guapiles, May 8, 1905, containing two fresh eggs. 

 It was a cup-shaped structure, made entirely of moss, lined with fine black 

 and brown vegetable fibers and placed in a crevice on the side of a large 

 tree, between two projecting spur-roots about four feet above the ground. 

 The eggs are deep cream-color, with a few markings of lilac and small 

 blotches of bright cinnamon-rufous scattered over the whole surface, but 

 thicker about the larger end, forming a wreath. 



Measurements: 17X13 and 17X13. 5 mm. 



474. Leptopogon superciliaris Cabanis. 



Leptopogon superciliaris Cabanis, in Tschudi's Fauna Peruana, Aves, 1845, 161, 

 pi. 10, fig. 2. — Salvin, Ibis, 1870, 115 (Costa Rica [J. Carmiol]). — 

 Sclater, Cat. Birds Brit. Mus., XIV, 1888, 115 (Costa Rica, Carmiol, one 

 skin). — Salvin and Godman, Biol. Centr.-Am., Aves, II, 1888 (Salvin's 

 record cited). — Ridgway, Birds N. and Mid. Amer., IV, 1907, 465 (Costa 

 Rica to Bolivia; — Costa Rica: Guayabal and Carrillo). 



U. S. Nat. Museum: Guayabo, one 9 (Ridgway and Zeledon). 

 Bangs Collection: Carrillo, six specimens; El General (Underwood). 



This is a very rare species, not only in Costa Rica, but throughout its 

 range. It has been taken in Costa Rica, with the exception of one skin, 

 only in the northeastern part of the Caribbean lowlands, most of the ex- 

 isting specimens having been taken at Carrillo, one at Guayabo, and one 

 at Guayabal. The other skin in Mr. Bangs' collection came from El Gen- 

 eral de Terraba. It is a woodland bird, but just what kind of localities 

 it inhabits I do not know, never having taken the bird. It may be that 

 in life it closely resembles some common species, thus escaping the notice 

 of collectors in general. 



475. Leptopogon pileatus faustus Bangs. 



Leptopogon pileatus Cabanis, Jour, fur Orn., 1865 (pub. Jan., 1866), 414 (Guate- 

 mala). — Salvin, Ibis, 1869, 319 (Valsa [J. Carmiol]). — Sclater, Cat. 

 Birds Brit. Mus., XIV, 1888, 116, part (Valsa [Carmiol]). — Salvin and 

 Godman, Biol. Centr.-Am., Aves, II, 1888, 25, part (Costa Rican references). 

 — Ridgway, Birds N. and Mid. Amer., IV, 1907, 463, part (southern Mexico 

 to Panama City; — Costa Rica: Valsa). 



Leptopogon pileatus faustus Bangs, Auk, XXIV, 1907, 300 (type from Boruca, 

 Costa Rica, May 5, 1906; C. F. Underwood; — five adults, both sexes, 

 Boruca and Paso Real). 



Bangs Collection: Tenorio, one specimen (Underwood). 



C. H. Lankester Collection: Miravalles, May 27, 1906, one specimen. 



