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BIRDS OF THE REPUBLIC OF PANAMA- — PART 4 



When examining a bird I collected at Cerro Punta, I found that the 

 yellow feather tufts at the lower end of the tibia are of a stiffer texture 

 than ordinary feathers. The concealed tibio-tarsal joint is white. 



PSELLIOPHORUS LUTEOVIRIDIS Griscom: Yellow-green Finch, 

 Pinzon Verdiamarillo 



Pselliophorus luteoviridis Griscom, 1924, Amer. Mus. Novit., no. 141, p. 10. (Cerro 

 Flores, 6,000 ft., eastern Chiriqui, Panama.) 



Medium size; head, wings, and tail black; back dark yellowish green, 

 becoming olive on lower back; undersurface yellowish green, with 

 thighs yellow. 



Description. — Length 172-185 mm. Adult (sexes alike), head and 

 throat black; upper back dark yellowish green, becoming olive on lower 

 back; wings and tail black; undersurface mostly yellowish green, 

 slightly lighter in center of belly; thighs and bend of wing yellow. 



Measurements. — Male (1 from Veraguas), wing 83.0, tail 84.4, 

 culmen from base 16.7, tarsus 24.9 mm. 



Females (6 from Chiriqui and Veraguas, including the type), wing 

 79.0-84.0 (80.8), tail 78.4-84.5 (81.8), culmen from base 15.1-16.5 

 (15.7), tarsus 24.6-26.8 (26.0) mm. 



Resident. Known only from two locations in eastern Chiriqui and 

 Veraguas. The type, a female, was taken by Griscom in cloud forest at 

 Cerro Flores ( 1800 m), Chiriqui, on March 14, 1924. In February and 

 March of 1926, R. R. Benson collected 6 at Chitra, Veraguas, between 

 1200 and 1410 m. This form is so different from P. tibialis that its 

 separate status as a full species seems well warranted. 



ATLAPETES ALBINUCHA (Lafresnaye and d'OrbignyJ: Yellow- 

 throated Brush-finch, Pinzon Rastrojero Gargantiamarillo 



Embernagra albinucha Lafresnaye and d'Orbigny, 1838, Rev. Zool. [Paris], 1, 

 p. 165. (Caribbean slope of Mexico.) 



Medium size; crown black with broad white median stripe; rest of 

 upper surface very dark gray or brown; throat yellow; rest of under- 

 surface white or whitish. 



Description. — Length 161-181 mm. Adult (sexes alike), crown and 

 side of face black, with white median stripe extending to nape; rest 

 of upper surface blackish gray or dark brown {azuerensis) ; throat 

 bright yellow; undersurface white with light gray wash on sides and 

 flanks and undertail coverts brown; underwing coverts white. 



Juvenile, back dark brown with a few lighter spots; yellow throat 



