FAMILY APODIDAE 237 



that the right wing in 1 (Arce no. 3328) measured 109.0 mm., while 

 the left wing was considerably worn at the tip so that it was only 

 103 mm. This latter measurement corresponds to the 4.1 inches 

 given by Salvin, the other wing being equal to about 4.5 inches. The 

 wing length in the other Bugaba specimen is 109.5 mm. or slightly 

 more than 4.5 inches. Hellmayr (Verh. Orn. Ges. Bayern, vol. 8, 

 1908, p. 161), therefore, was correct in his selection of the bird with 

 one wing defective as the type. 



The 2 marked from "Veragua," both males, have wing lengths of 

 108.0 and 108.5 mm. It is possible that Arce collected them at the 

 type locality for like the 2 from Bugaba they are dated 1870. 



The main range of the race fumosa is in the tropical lowlands of the 

 Pacific slope of southwestern Costa Rica from the valley of the Rio 

 Terraba south to the head of Golfo Dulce. 



CHAETURA SPINICAUDA AETHERODROMA Wetmore 



Chaetura spinicauda aetherodrom-a Wetmore, Smithsonian Misc. Coll., vol. 117, 

 no. 2, Sept. 25, 1951, p. 2. (Chepo, Panama.) 



Characters. — Similar to Chaetura s. fumosa but smaller, wing 100.2- 

 107.0 mm. 



A male, taken March 2, 1961, near the Candelaria Hydrographic 

 Station, on the Rio Pequeni, Province of Panama, had the iris wood 

 brown ; bill black ; tarsus and toes dark neutral gray ; claws black. 

 A female, collected February 26, 1964, on Cerro Mali, Darien, had 

 the iris brown ; bill black ; tarsus and toes dull purplish gray ; claws 

 black. 



Measurements. — Males (20 from Panama and Colombia), wing 

 100.2-107.0 (103.5), tail 36.3-41.8 (38.9), culmen from base 4.9-6.2 

 (5.4), tarsus 10.0-11.7 (10.6) mm. 



Females (13 from Panama and Colombia), wing 100.3-105.8 

 (103.1), tail 34.6-41.3 (39.3), culmen from base 5.1-5.9 (5.5), tarsus 

 10.5-11.8 (11.0) mm. 



Resident. Locally common from the Canal Zone east through 

 Darien and San Bias to Colombia, mainly in the lowlands, but ascend- 

 ing in feeding to 1,450 meters in the mountains (Cerro Tacarcuna). 



It is probable that a single bird (sight record) noted near La Cam- 

 pana at the base of Cerro Campana, March 9, 1951, and several seen 

 March 30 in the same year, in the open valley at El Valle, Code, were 

 this race, but as none were collected this is not certain. 



Specimen records are as follows — Canal Zone: Gamboa, Gatun. 

 Panama (eastern sector) : Chepo, Rio Pequeni at the Candelaria Hy- 



