140 MR. SCLATER ON THE AMERICAN CAPRIMULGID.E. [Feb. 27, 



1. Stenopsis CAYANENSIS. 



Caprimulyus cayanensis, Gra, S. N. i. p. 1031 (ex Buff. PI. Enl. 

 760) ; Cab. in Schomb. Guian. iii. p. 710. 



C. cayanus, Lath. Ind. Orn. ii. p. 587. 



C. leopetes, Jard. & Selb. 111. Orn. ser. 1. pi. 87. 



Stenopsis cayanensis, Cassin, Proc. Ac. Phil. v. p. 179. 



Hub. Cayenne {Buff.) ; Tobago (Kirk). 



This species is very easily recognizable by its white outer tail- 

 feathers. The four outer pair are for the greater part white, crossed 

 by a narrow black band on the inner web about halfway down, the 

 outer webs being also broadly edged and tipped with black. My 

 specimens were kindly presented to me by Sir William Jardine, having 

 been procured by his correspondent Mr. Kirk in Tobago, and are 

 therefore typical of his C. leopetes. 



Azara's "Ibiyau alas y cola blancas," Apunt. no. 314 (unde Capr. 

 leucurus, Vieill.), is commonly referred to this species, which, if this 

 be correct, goes as far south as Paraguay. But I have never met 

 with examples from that country, nor from any part of Brazil. 



2. Stenopsis bifasciata. 



Caprimulgus lonyirostris, Bp. Journ. Acad. Phil. iv. p. 384 (?). 



C. bifasciatus, Gould, P. Z. S. 1837, p. 22 ; Zool. Voy. Beagle, iii. 

 p .36; Gay, Fauna Chilena, i. p. 261 (certe). 



C. decussatus, Tschudi, Consp. Av., et Faun. Per. p. 126, t. 5. f. 1. 



C. conterminus, Peale, Zool. Expl. Birds, p. 169. 



Stenopsis lonyirostris, Cassin, Cat. Capr. et Mamm. & Orn. Expl. 

 Exp. p. 188; Atl. pi. 13. f. 1. 



Antrostomus lonyirostris, Burm. Syst. Ueb. ii. p. 387 (?)• 



Hab. Mountains of Central Chile (Darwin) ; vicinity of Valpa- 

 raiso (Peale) ; vicinity of Santiago (Leybold) ; Peru (Tsch.). 



It appears to me very doubtful whether Caprimulyus lonyirostris 

 of Bonaparte really belongs to this Chilian species ; and I have there- 

 fore adopted as its specific designation the next given name, bifasciatus 

 of Gould. I have seen Mr. Gould's typical specimen of this species 

 in the British Museum, and find that it agrees with my examples, 

 which were transmitted by Leybold from the vicinity of Santiago. 



Dr. Burmeister gives his Antrostomus lonyirostris as inhabiting 

 "middle Brazil and Amazonia;" but I have never seen the Chilian 

 bird from those countries, and should almost doubt its occurrence 

 there. 



Messrs. Philippi and Landbeck have lately described a Capr. an- 

 dinus, from Chili (Wiegm. Arch. f. Nat. 1860, p. 279), which seems 

 to be a female bird, perhaps of this species. 



3. Stenopsis ruficervix, sp. nov. (PI. XIV.) 



S . Sup?-a nigra, rufo varieyata, torque collari postico Icete rufo ; 

 alis niyris, secundariis et tectricibus rufo maculatis, primariis 

 quatuor extends albo vittatis : subtus nigra, vitta lata yulari 

 alba ; ventre fulvo, niyro transradiuto : caudte rectricibus 



