64 BULLETIN 117, UNITED STATES NATIONAL MUSEUM. 



Family CAPRIMULGIDAE. 



NIGHTJARS. 



(338) UROPSALIS LYRA (Bonaparte). 



Hydropsalis lyra Bonaparte, Consp. Av., vol. 1, 1850, p. 59 (Colombia), 

 ?Macropsalis lyra peruana Berlepsch and Stolzmann, Ornia, 1906, p. 121 (Marca- 

 pata, Peru). 



Our single specimen agrees in size and essentially in color, with a 

 female from near Honda, Colombia. Berlepsch and Stolzmann ap- 

 pear to have based their proposed Peruvian race on comparison of 

 but one specimen from Peru, with a male from Merida, Venezuela. 

 In view of this circumstance, it does not seem to be desirable to 

 recognize at present a Peruvian form. 



Torontoy, 1 female adult. 



(943) HYDROPSALIS TORQUATA (Gir.elin). 



Caprimulgus torquatus Gmelin, Syst. Nat., vol. 1, 1789, p. 1032 (Brazil). 

 Hydropsalis torquata Berlepsch and Stolzmann, Ornis, 1906, p. 96 (Idma). 



Two specimens are somewhat darker than specimens from Matto 

 Grosso, Santarem, and Bahia. 



Rio Cosireni, 2 females (Aug. 27, eggs in ducts), 



(918) NYCTIDROMUS ALBICOLLIS, subspecies. 



Caprimulgus albicollis Gmelin, Syst. Nat., vol. 1, 1789, p. 1030 (Cayenne). 



An adult male from the Tropical Zone agrees in general tone of 

 color v/ith a male from the Essequibo River (wing, 146 ; tail, 146 mm.), 

 and is intermediate in size between that form and derhyanus. Addi- 

 tional material is required to determine the status of the south Pe- 

 ruvian bird. 



Rio Cosireni, 1 male. 



(955) THERMOCHALCIS RUFICERVIX (Sclater). 



Stenopsis ruficervix Sclater, Proc. Zool. Soc, 1866, p. 140, pi. 14 (Colombia). 



A single immature specimen furnishes no basis for comparison of 

 Peruvian with Colombian material. 

 Chospiyoc, 1 immature, 



(964) ANTROSTOMUS NIGRESCENS Cabanis. 



Antrostomus nigrescens Cabanis, Scliomb. Reis. Guian., vol. 3, 1848, p. 710, 

 (British Guiana). 



This specimen is slightly larger than British Guiana birds and has 

 the wings more spotted, characters of subspecilic value if they are 

 constant. 



Rio Cosireni, 1 female. 



