52 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 134 
Melanerpes Wagleri Satvin and GopMAN, Biologia Centrali-Americana., Aves, 
vol. 2, 1895, p. 416. (Lion Hill, Canal Zone.) 
Melanerpes subelegans neglectus R1icHMonpD, Proc. U. S. Nat. Mus., vol. 18, 
Aug. 12, 1896, p. 668. (Bogota, Colombia.) 
Melanerpes wagleri sanctae-martae Bans, Proc. Biol. Soc. Washington, vol. 12, 
June 3, 1808, p. 134. (Santa Marta, Colombia.) 
Centurus rubricapillus costaricensis AtpricH, Sci. Publ. Cleveland Mus. Nat. 
Hist., vol. 7, Aug. 31, 1937, p. 81. (El Pozo, 25 feet, Rio Terraba, Pun- 
tarenas, Costa Rica.) 
Characters.——White and black bars on back nearly equal; under 
surface pale. 
Measurements.—Male, wing 100.8-114.5 (108.2), culmen from 
base 21.6-27.6 (24.7) mm. Female, wing 95.9-112.6 (105.1), culmen 
from base 19.8-25.1 (22.5) mm. 
Range.—Pacific slope from southwestern Costa Rica (Uvita, and 
the valley of Rio Diquis) across Panama (in western Chiriqui to 
5,000 feet elevation) to the mouth of Rio Tuyra (Punta de la Sa- 
bana), extending northward through the broad depression traversed 
by the Panama Canal to the Caribbean coast between the Rio Indio 
(El Uracillo, Coclé; Chilar, Colon) and Porto Bello including the 
valley of the Rio Chagres (to Madden Dam) ; northern Colombia 
from the Rio Sint (Tierra Alta) through the drainage of the Rio 
Magdalena (including the Rio Cauca and the Rio Cesar), the north- 
ern slopes of the Sierra Nevada de Santa Marta, and across Norte 
de Santander (Convencion, Ocafia, Cucuta) ; through northern Vene- 
zuela (except northern Falcén) south to the Rio Orinoco, including 
Margarita Island; and Trinidad and Tobago. 
The series now available in the U.S. National Museum covers this 
extensive range in sufficient detail to show that none of the supposed 
races that have been separated may be maintained, as there are no 
constant color differences. Birds from Colombia average slightly 
smaller, especially in the females, but local variation in measurements 
is such that no line of demarcation may be drawn. The range in 
size is shown by the following summary of wing measurements: 
MALES 
Costa Rica (11 specimens 1°), 105.0-113.0 (109.7) mm. 
Panama (31 specimens), 105.7-114.5 (110.6) mm. 
Colombia (23 specimens), 100.8-111.4 (105.1) mm. 
Venezuela (12 specimens), 104.4-113.2 (108.1) mm. 
15 From the description of C. r. costaricensis by Aldrich. 
