498 Annals of the Carnegie Museum. 



208. Hylomanes momotula Lichtenstein. 



Hylomanes momotula Lichtenstein, Abhandl. Akad. Wissensch. Berol., 1838, 

 449, pi. 4. — Sharpe, Cat. Birds Brit. Mus., XVII, 1892, 332 (Mexico to 

 Guatemala). — Salvin and Godman, Biol. Centr.-Am., Aves, II, 1895, 471 

 (Mexico to Guatemala). — Underwood, Ibis, 1896, 443 (Miravalles, three 

 specimens, first record for Costa Rica). 



Bangs Collection : Tenorio, La Vijagua, Cerro de Santa Maria 



(Underwood). 



This bird occurs in Costa Rica only in the extreme northwestern 

 portion, from Miravalles northward along both sides of the continental 

 range, at an altitude of 1,000-2,000 feet. It is rare at Miravalles, 

 neither Mr. Lankester nor myself being able to find it. Underwood 

 reports it as commoner farther north, where a good series was obtained. 



Family CAPRIMULCID^. 



Key to the Costa Rican Species. 



a. Size large (wing, 290 mm.); mostly grayish or grayish -brown ; streaked and 

 blotched with black. Nyctibhis jamaicensis. 



aa. Size medium or small (wing not more than 215 mm.). 

 b. Rictal bristles long and strong. 



c. One or more of four lateral rectrices with a greater or less extent of 

 immaculate white or buff-ochraceous on inner web, or on both 

 webs. 

 d. Immaculate area on rectrices pure white. 



e. Outer primaries with a prominent white spot. 



f. Inner webs of four outer rectrices white apically, tipped 



with blackish-brown on all except the outer. 



g. Inner web of two outer rectrices crossed with a 



prominent sooty-black bar midway between base 



and tip. Stenopsis cayennensis, $ . 



gg. No sooty-black bar on outer rectrices. 



Stenopsis albicaada, $ . 

 ff. No white on outer rectrix. 



g. Second and third rectrices entirely white on inner 



web. (except at base and partially so on outer 



web). Nyctidromus albicollls, $. 



gg. White confined to apical portion of inner web of 



second rectrix ; white wing-spot surrounded by 



buff-ochraceous. A T yctidromus albicollis, <j> • 



ee. Outer primaries without white or buffy spot ; no white jugular 



patch. 



