1917.] Chapman, Distribution of Bird-life in Colombia. 303 



described by Hartert, which differs from derbyi only in its longer bill. The 

 comparative rarity of this long-billed race in Bogotd collections, the absence 

 of definite records of it from the Ecuadorian Andes, and the fact that it is 

 common at the northern end of the Central Andes, where true derbyi might 

 be expected to occur, indicate in my opinion, that this species does not 

 occur in the Eastern Andes and that Bogota skins of it come from the 

 Central Andes, probably from the Quindio trail region where our specimens 

 were taken. 



The culmen in five males measures 21.0 mm. ; in five females, it measures 

 22.1 mm. 



Laguneta, 15; Santa Isabel, 1; 



(1307) Ocreatus underwoodi underwoodi (Less.). 



Omismya underwoodi Less., Hist. Nat. Troch., 1832, pi. 37, p. 105 (Bogota). 

 Spathura underwoodi Wyatt, Ibis, 1871, p. 376 (Canute); Simon & Dalmas, 

 Ornis, XI, 1901, p. 223 (La Tigra; Las Cmces). 



Steganura underwoodi Sol. & Salv., P. Z. S., 1879, p. 539 (Sta Elena; Medellin). 



Ranges through the Subtropical Zone of all three ranges. Our large 

 series from Colombia and Ecuador, shows that the males of the present 

 race can be distinguished from melanthera only by their longer tails and 

 larger terminal spatules. Bogota females average less spotted below than 

 those from Ecuador, but on the other hand, Cauca females, which approxi- 

 mately agree with those from the Bogota region in size, are no more spotted 

 below than those from Ecuador. The tail increases in length as one advances 

 northward, ranging from 68 mm. in the Quito region, to 73 mm. at San 

 Antonio, and 82 mm. at Salento and the Bogota region. 



Las Lomitas, 1; San Antonio, 10; Andes w. of Popayan, 1; Cerro 

 Munchique, 1; La Florida, 1; Miraflores, 5; Salento, 7; La Candela, 4; 

 San Agustin, 2; Aguadita, 1; Buena Vista, 1. 



(1314) Urosticte benjamini benjamini (Bourc). 



Trochilus benjamini Bounc, Compt. Rend., XXXII, 1851, p. 187 (vicinity of 

 Gualea, Ecuador). 



Urosticte benjamini Hbllm., P. Z. S., 1911, p. 1186 (La Selva, R. Jamaraya, 

 4600 ft.). 



A female from Ricaurte is evidently to be referred to the Ecuadorian form 

 rather than to U. b. rostrata described by Hellmayr (Verhand. Ornith. 

 Gesell. in Bayern, XII, 1915, p. 125), from the San. Juan river, western 

 Colombia. The culmen measures 20 mm. 



Ricaurte, 1. 



