398 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



Bocas del Toro. The race rufivertex is found from both slopes of Vera- 

 guas to northwestern Colombia on the Gulf of Uraba. 



Ridgely (1976, p. 315) says this species has "rather harsh conversa- 

 tional notes, but [is] usually silent." 



EUPHONIA ANNEAE ANNEAE Cassin 



Euphonia Anneae Cassin, 1865, Proc. Acad. Nat. Sci. Philadelphia, p. 172. (Santa 

 Rosa, Costa Rica.) 



Characters. — Male is more yellow, less orange, on undersurface, 

 especially on breast; sides clearer yellow. Female is more yellowish 

 green on sides and flanks, averaging somewhat lighter gray on fore- 

 neck, breast, and abdomen; somewhat lighter green above. 



Measurements. — Males (10 from Panama and Costa Rica), wing 

 62.3-68.5 (65.1), tail 31.9-38.4 (35.9), culmen from base 9.0-10.9 

 (10.0), tarsus 14.9-16.5 (15.7) mm. 



Females (7 from Costa Rica), wing 59.0-64.2 (61.9), tail 31.2-36.1 

 (33.8), culmen from base 9.0-10.8 (9.8), tarsus 15.6-16.2 (15.9) mm. 



Resident. Uncommon to locally common in western Chiriqui and 

 Bocas del Toro in the foothills of both slopes, usually found between 

 600 and 1200 m, although I collected a male at 1740 m on Cerro Punta, 

 Chiriqui. Elsewhere in Chiriqui it has been taken at El Volcan and 

 Boquete. Ridgely (in litt.) found this species "numerous" at the For- 

 tuna Dam site in February-March 1976. Three males in the collection 

 of the Museum of Comparative Zoology marked "Panama (Caribbean 

 slope)" taken at 2100 m in June 1901 come from the Caribbean slope 

 of the Volcan de Chiriqui. In the foothills of Bocas del Toro, R. Hinds 

 collected an immature male at 720 m on the Rio Changuena. Hinds also 

 collected a male in the Bocas del Toro lowlands, on January 15, 1980, 

 at the IRHE dam site camp at 50 m, at the base of the mountains. 



EUPHONIA ANNEAE RUFIVERTEX Salvin 



Euphonia rufivertex Salvin, 1866, Proc. Zool. Soc. London, p. 71, pi. 7. (Santiago 

 de Veraguas.) 



Characters. — Male is more orange below, averaging darker on sides, 

 which are dull yellow. Female is dull green on sides and flanks; aver- 

 aging darker gray on foreneck, breast, and abdomen; somewhat duller 

 green above. 



A male collected at the Candelaria Hydrographic Station, Panama, 

 on March 6, 1961, had the iris dark brown; basal half of mandible 



