Carriker : List of the Birds of Costa Rica. 845 



qui; coll. Count von Berlepsch). — Ridgway, Birds N. and Mid. Amer., II, 

 1902, 141 (Chiriqui). — Bangs, Auk, XXIV, 1907, 309 (Boruca, Paso Real, 

 El Pozo, and Lagarto de Terraba [Underwood]). 



Bangs Collection: El General and Buenos Aires de Terraba; Pozo Azul 



de Pirris (Underwood). 

 Carnegie Museum: El Pozo de Terraba, Boruca, Buenos Aires, and Pozo 



Azul de Pirris (Carriker). Fifteen skins. 



This is a very poor race, if indeed it can be maintained as such, a great 

 deal of variation being shown among specimens from the same locality. 

 It may be that all the skins examined of this form are from the transition 

 zone and are not true stictothorax, and that birds from farther south will 

 present more constant characters. At all events it is perhaps best to 

 recognize it until additional material shall decide the question definitely 

 one way or the other. The specimens from southwestern Costa Rica 

 show a marked streaking of the chest and a darker coloration below r , 

 characters given as diagnostic of the subspecies, so that they are at least 

 referable to it, if not quite typical. 



Its habits and habitat are the same as those of the preceding species. 



665. Tachyphonus delatrii Lafresnaye. 



Tachyphonus delatrii Lafresnaye, Rev. Zool., 1847, 72 (San Buenaventura, 

 Colombia). — Cassin, Proc. Acad. Nat. Sci. Phila., 1865, 171 (Pacuare [Car- 

 miol]). — Sclater and Salvin, Exotic Orn., 1868, 67, pi. 34, male. — Frant- 

 zius, Jour, fur Orn., 1869, 299 (Costa Rica). — Boucard, P. Z. S., 1878, 55 

 (San Mateo). — Salvin and Godman, Biol. Centr.-Am., Aves, I, 1883, 312 

 (Costa Rican references). — Sclater, Cat. Birds Brit. Mus., XI, 1886, 215 

 (no Costa Rican specimens). — Zeledon, An. Mus. Nac. de C. R., I, 1887, 

 no (Pacuare).— Ridgway, Birds N. and Mid. Amer., II, 1902, 136 (Costa 

 Rica: Talamanca, Pacuare, San Mateo, etc., southward to western Ecuador). 



Tachyphonus delatrei Lawrence, Ann. Lye. N. Y., IX, 1868, 100 (Pacuare [J. 

 Carmiol]). 



Chlorospingus brunneus Lawrence, Ann. Lye. N. Y., X, 1874, 395 (Talamanca 

 [Zeledon]; coll. U. S. Nat. Mus.; female). — Salvin, Ibis, 1874, 308 (critical). 



U. S. Nat. Museum: Jimenez (Underwood), Reventazon (Carranza). 



Bangs Collection: Carrillo, four specimens (Underwood). 



Carnegie Museum: Guacimo, Carrillo, El Hogar (Carriker), eleven skins; 



Carrillo (Underwood), three skins. 



With one exception all the Costa Rican records of this species are from 

 the Caribbean lowlands and foot-hills. Boucard records the bird from 

 San Mateo, but no subsequent or earlier collectors have ever taken it in 

 that vicinity or in any other part of the Pacific lowlands or foot-hills, so 



