FAMILY TROCHILIDAE 271 



Description. — Length 130-140 mm. Pileum dusky to fuscous-black; 

 back, wing coverts, and base of tail green, lightly margined with 

 cinnamon-buff on rump and upper tail coverts; end of tail black, 

 tipped with white, with the black in the elongated central pair changing 

 basally to fuscous-brown, and the white on the tip extensive; wing 

 dusky with a faint violet sheen ; side of head broadly black ; a broad 

 superciliary line, varying from white to buff ; foreneck, upper breast 

 and abdomen white ; throat streaked with dusky ; breast grayish ; flanks 

 light buff ; under tail coverts white, sometimes washed with buff. 



The species is one of wide range across northern Colombia and 

 northern Venezuela that has its northwestern limit in eastern Panama. 

 Two slightly differing forms are recognized in the Republic. 



PHAETHORNIS ANTHOPHILUS ANTHOPHILUS (Bourcier) 



Trochihis anthophilus Bourcier, Rev. Zool., vol. 6, March 1843, p. 71. (Upper 

 Magdalena River, Colombia.) 



Characters. — Distal section of elongated central rectrices narrowed 

 to a definitely uniform width ; throat more heavily streaked : averaging 

 slightly paler green above. 



A male, taken February 16, 1963, at Puerto Obaldia, San Bias, had 

 the iris dark brown ; maxilla and tip of mandible black ; base of mandi- 

 ble bright orange-red ; tarsus and toes brownish neutral gray ; claws 

 fuscous-black. 



Measurements. — Males (4 from Panama), wing 57.5-60.4 (59.0), 

 tail 54.1-58.0 (56.5), culmen from base 33.9-37.3 (35.1) mm. 



Female (1 from Panama), wing 54.6, tail 59.6, culmen from base 

 33.0 mm. 



Resident. Found in the Tropical Zone in the lowlands of the eastern 

 sector of the Province of Panama, between Pacora and the mouth of 

 the Rio Chico. Recorded at Puerto Obaldia, eastern San Bias. 



This interesting hummingbird was found first on the mainland on 

 March 18, 1949, when I collected one near Chico, Panama. On April 

 3, near Pacora, Panama, I secured another when it flew out from a 

 hedgerow to move rapidly among scattered weeds in an open pasture. 

 In 1961 I took a third March 22 as it fed at flowers of a roble near 

 the Cienaga Santo Domingo, between the La Jagua Hunting Club and 

 the coast at Chico. Two days later several were visiting flowers of 

 ema jagua back of the beach near the mouth of the Rio Chico, where 

 another was taken. They ranged more in the open than usual for 

 other members of the genus found in Panama. 



Near Puerto Obaldia, San Bias, February 16, 1963, I secured 1 



