1917.] Chapman, Distribution of Bird-life in Colombia. 277 



(969) Streptoprocne zonaris albicincta (Cab.). 



Hemiprocne albicincta Cab., J. f. O., 1862, p. 165 (Guiana = "Mexico 6m 

 Guiana"). 



Hemiprocne zonaris Scl. & Salv., P. Z. S., 1879, p. 531 (Concordia; Retiro; 

 breeds); Stone, Proc. Acad. N. S. PMa., 1899, p. 305 (near Ambalema); Alien, 

 BuU. A. M. N. H., XIII, 1900, p. 137 (Sta. Marta). 



This deeply colored, blue-black Swift inhabits the Tropical Zone of 

 Colombia ranging upward into the Subtropical Zone. I have seen no Guiana 

 specimens, but it is not probable that they differ materially from the lowland 

 form of Colombia. Should the Colombia bird prove to be distinct, it should 

 stand as S. s. minor (Lawr.), the type of which in the American Museum 

 agrees with the lowland form. 



Alto Bonito, 2; Dabeiba, 3; Los Cisneros, 1; Las Lomitas, 2; San An- 

 tonio, 2; Chicoral, 1; Honda, 1; Quetame, 3; Buena Vista, 6; VUlavicen- 

 cio, 1. 



r ^ (976) ChsBtura spinicauda fumosa Salv. 



ChcBtura fumosa Salv., P. Z. S., 1870, p. 204 (Bugaba, Chiriqui); Wtatt, Ibis, 

 1871, p. 375 (Naranjo). 



Found only in the Tropical Zone of the Pacific Coast and lower Cauca. 



In the color of the rump and upper tail-coverts four males agree with 

 five others in the Carnegie Museum from Pozo Azul, Costa Rica, but they 

 average slightly greener above and are larger, as the appended measure- 

 ments show. Possibly the Colombian bird deserves separation. 



Wing Tail 



Colombia, 4 Males 96-101 (99.3) 30.5-41 (40) 



Costa Rica, 5 Males 108-112 (109) 40. -43 (41.6) 



Juntas de Tamana, 2; No vita, 1; Puerto Valdivia, 1. 



(977) ChsBtura cinereiventris sclateri Pelz. 

 Chcetura sclateri Pelz., Orn. Bras., I, 1868, p. 56 (Borba, R. Madeira). 



A male from Buena Vista, above Villavicencio, measures, wing, 107; 

 tail, 39 mm. It therefore agrees in size with sclateri (which has been re- 

 corded from e. Ecuador, c/. Hellm. Orn. Gesell. Bayem, VIII, 1908, p. 157) 

 which, so far as one can judge from descriptions, it also resembles in color, 

 the belly and rump being grayer than specimens from the Central Andes, 

 identified as C. c. occidentalis. 



Buena Vista, 1. 



