856 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Pacific slope of Central America, in Costa Rica (La Palnia de 

 Nicoya), Nicaragua (Onietepe), and Salvador (San Salvador); prol)- 

 ably also in southwestern Guatemala. 



Pachyrhainphus lalirostris Bonaparte, Compt. Rend., xxxviii, 1854, 658 (Nica- 

 ragua; coll. Delattre); Notes Orn. Coll. Delattre, 1854, 87. — Sclater, Proc. 

 Zool. Soc. LoncL, 1857, 74 (monogr.). 



[Tityra] latirostris Gray, Hand-list, i, 18G9, 3G8, no. 5600. 



Hydrostornus [typographical error] latirostris Ridgway, Proc. U. S. Nat. Miis., vi, 

 1884, 293 (Ometepe, Nicaragua; crit.). 



P[latypsaris] latirostris Ridgway, Man. N. Am. Birds, 1887, 325 (Nicaragua; \v. 

 Costa Rica). 



Platypsaris latirostris Ridgway, Proc. U. S. Nat. Mus., xiv, 1891, 408, 469, 474, 

 in text (Ometepe, Nicaragua; La Palma de Nicoya, w. Costa Rica). 



P[latypsaris] a[glaise] latirostris Ridgway, Proc. U. S. Nat. Mus., xiv, 1891, 468, 

 in text (Ometepe, Nicaragua); xvi, 1893, 612, in text (La Palma de Nicoya, 

 Costa Rica). 



P[lalypsaris] aglaix latirostris Ridgway, Proc. U. S. Nat. Mus., xiv, 1891, 469 

 (Nicaragua). 



Hadrostomus hovioc.hrovs'l (not of Sclater) Ridgway, Proc. U. S. Nat. Mus., v, 

 1882, 397 (La Palma de Nicoya, Costa Rica). 



P[latypsaris] aglaise (not Pachyrhynchus aglaix Lafresnaye) Ridgway', Man. N. 

 Am. Birds, 1887, 324, part (Salvador). 



[Platypsaris] aglaix Sharpe, Hand-list, iii, 1901, 163, part. 



Hadrostomus aglaix Sclater, Cat. Birds Brit. Mus., xiv, 1888, 335, part (Nica- 

 ragua; specimens d'', e'). — Salvin and Godman, Biol. Centr. Am., Aves, ii, 

 1890, 121, part (Ometepe I., Nicaragua). 



\IIadrostom;ns\ aglaim Sclater and Salvin, Nom. Av. Neotr., 1873, 56, part. 



PLATYPSARIS AGLAIiE ALBIVENTRIS (Lawrence). 

 XANTUS'S BECARD. 



Similar to P. a. aglaix, but much paler, the back, etc., slate-gray 

 instead of slate color, the general color of under parts varying from 

 pale gray to white, faintly tinged with pale gray on sides of breast, 

 the throat-patch averaging paler red (geranium pink to light rose 

 red) ; adult female with pileum light slate color or slate-gray (paler 

 gray anteriorly), hindneck pale buff to buff -tawny (forming a more 

 or less distinct collar), back, etc., light buffy gray to light grayish 

 brown (light bister or nearly broccoli), under parts buffv white to 

 buff. 



Adult male.— Length (skins), 153-169 (159); wing, 86.5-95.5 (90); 

 tail, 63-68.5 (65.1) ; exposed culmen, 14.5-16.5 (15.5) ; tarsus, 19.5-21.5 

 (20.4); middle toe, 12-13 (12.7).° 



very faintly tinged with pink. Both the specimens from Salvador have a rather large 

 patch of pale vermilion or flesh pink on the lower throat, this patch much smaller than 

 in P. a. aglaix and other forms (except Guatemalan examjiles of P. a. sumichrasti, 

 which are otherwise very different) and of a very different hue from the usual color 

 in any of the other forms. The female from Villanueva, Guatemala (which I have not 

 been able to locate on the map), is quite indistinguishable from the females of this 

 form from western Nicaragua and Costa Rica and very different from Guatemalan 

 specimens of P. a. sumichi-asti and P. a. hypophaeus. 

 "■ Fourteen specimens. 



