138 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



El Pozo de T6rraba; Pozo Azdl de Pirrls; La Vijagua) to Nicaragua 

 (Pena Blanca; Kio Grande; La Libertad, Chontales). 



Chloronerpes simplex Salvin, Proc. Zool. Soc. Lond., Aug. 1, 1870, 212 (Bxigaba, 

 Chiriqui, w. Panama; coll. Salvin and Godnian;=adult female); Ibis, 1874, 

 315, 317 (Chiriqui; Talamanca, Costa Rica; descr. adult male). — Zeled6n, 

 Cat. Aves de Costa Eica, 1882, 23; Proc. U. S. Nat. Mus., viii, 1885, 111 

 (Costa Rica); Anal. Mus. Nat. C. R., i, 1887, 124 (Costa Rica).— Harqut, 

 Cat. Birds Brit. Mus., xviii, 1890, 81 (Bugaba, Panama; Veragua).— 

 Chebeie, Proc. U. S. Nat. Mus., xiv, 1891, 536 (Pozo Azul de Pirris, s. w. 

 Costa Rica). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1895, 410, 

 'pi. 59, fig. 2 (La Libertad, Chontales, Nicaragua; etc.). — Feert, Pub. 146, 

 Field Mus. N. H., om. ser., i, 1910, 267 (Guayabo, Costa Rica). 



[Chloronerpes] simplex Sclatee and Salvin, Nom. Av. Neotr., 1873, 99. — Shaepe, 

 Hand-list, ii, 1900, 205. 



C[hloronerpes] simplex simplex Bangs, Bull. Mus. Comp. Zool., xxxix, 1903, 145, 

 in text. 



Chloronerpes simplex simplex Caerikbb, Ann. Carnegie Mus., vi, 1910, 584 (Costa 

 Rica; habits). 



CHLORONERPES SIMPLEX ALLOPHYEUS Bangs. 

 YABUCA WOODPECKER. 



Similar to O. s. simplex, of Costa Rica, Nicaragua, and western 

 Panama, but bUl slightly smaller, chest broadly barred with pale 

 yellowish buff, general color of under parts of body pale buflf-yellow 

 or dull maize yellow, and outer web of two lateral rectrices (on each 

 side) spotted with pale cinnamon-rufous. 



Adtdt male. — ^Length (skin), 167; wing, 112; taU, 61.5; culmen, 

 18; tarsus, 17; outer anterior toe, 15.5." 



Northern Honduras (Yaruca, 1,000 feet altitude). 

 Chloronerpes simplex allophyeus Banos, Bull. Mus. Comp. Zool., xxxix, July, 

 1903, 145 (Yaruca, Honduras, 1,000 ft.; coll. E. A. and 0. Bangs). 



Genus CELEUS Boie. 



Celeus Boie, Isis, 1831, 542. (Type, as fixed by Gray, 1841, Picus flavescens 



Gmelin.) 

 Celeopicos Malheebe, M6m. Acad. Metz, xxx, 1849, 332. (Type, Picus flavescens 



Gmelin.) 

 Xanthopicus Malherbe, Mon. Picid., Introd., 1861, p. liii. (Type, PtciM 



flavescens Gmelin.) 

 Malacolophus Swainson, Fauna Bor.-Am., ii, 1831, 300. (Type, according to 



Gray, 1855, Picus flavescens Gmelin.) 

 Malacolaphus (emendation?) Swainson, Anim. in Menag., 1838, 229, in text. 



One specimen (the type). 



1 am somewhat doubtful whether this supposed form will prove really separable 

 when a larger series of specimens has been examined. Examination of additional 

 specimens of true C. simplex from Nicaragua requires the elimination of some of the 

 characters given in the original description; for example, as to measurements, while 

 Mr. Bangs says it is "considerably smaller," all the measurements, except culmen 

 (which really is less) and tarsus (which is exactly the same) are in reality decidedly 

 greater than the minimuni of the same measurements of a series of nine adult males 

 of C. s. simplex. 



