FAMILY THRAUPIDAE 



399 



neutral gray; rest of bill black; tarsus and toes dark neutral gray; claws 

 black. A female collected there the same day was similar. 



Measurements. — Males (10 from Panama), wing 60.9-67.8 (63.8), 

 tail 32.3-38.8 (32.3), culmen from base 9.6-10.3 (10.0), tarsus 16.2- 

 17.0 (16.7) mm. 



Females (7 from Panama), wing 54.0-59.8 (58.3), tail 30.9-36.5 

 (33.5), culmen from base 8.9-10.9 (9.7), tarsus 14.7-16.0 (15.6) mm. 



Resident. Known from several locations from Veraguas to Darien. 

 In Veraguas, R. R. Benson took a series at Guaval, Rio Calovevora, on 

 the Caribbean slope between 180 and 300 m, and Arce found it on the 

 Pacific slope at Santa Fe, Santiago de Veraguas, and Calobre (Salvin 

 and Godman, Biol. Cent.-Amer., Aves, vol. 1 (pt. 26), 1883, p. 265). 

 Farther east, I have collected it in Code at El Valle and Tigre at the 

 head of the Rio Guabal, at Cerro Campana, Cerro Azul, and the Cande- 

 laria Hydrographic Station, Panama, and Cerro Mali and Tacarcuna 

 Village, Darien. 



EUPHONIA MINUTA HUMILIS (Cabanis): White-vented Euphonia, 

 Tanagra Diminuta 



Phonasca humilis Cabanis, 1860, Journ. f. Ornith., 8, p. 334. (Costa Rica.) 



Very small; male, bright yellow forecrown; rest of upper surface 

 and throat glossy dark blue; abdomen white, rest of undersurface bright 

 yellow; female, upper surface dull yellowish green; undersurface 

 mostly greenish yellow. 



Description. — Length 79-98 mm. Adult male, forecrown rich yellow; 

 lores, rest of head, and throat glossy dark violet-blue, becoming very 

 dark blue on rest of upper surface, including wing coverts; remiges 

 dusky blackish, inner secondaries white on basal third; rectrices black, 

 with white patches on inner webs of outer two pairs; lower abdomen 

 and undertail coverts white; rest of undersurface rich yellow; under- 

 wing coverts white. 



Adult female, sides of head and upper surface, including wing co- 

 verts, yellowish green, slightly more yellow on forecrown; remiges and 

 rectrices dusky, edged green; throat pale gray extending to sides of 

 nape, flecked with yellow on chin; breast greenish yellow, becoming 

 greener on sides and flanks; rest of undersurface whitish; underwing 

 coverts white. 



Immature male, upper surface yellowish green, except for yellow 

 forecrown; throat dark violet-blue; rest of undersurface yellow on cen- 

 ter, becoming greenish yellow on sides. 



