832 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



PACHYRHAMPHUS POLYCHROPTERUS SIMILIS (Cherrie). 

 SLATE-BELLIED BECARD. 



Similar to P. p. cinereiventris , but darker, the under })arts darker 

 and more uniform slate-gray, the l)lack of back invading more or less 

 of the rump, even the lower rump and upper tail-coverts sometimes 

 streaked or otherwise marked with black; averaging slightly larger, 

 with relatively broader bill. 



Adult male. —l^engih (skins), 128-153 (136); wing, 67.5-73 (71.1); 

 tail, 54-56.5 (54.9); exposed culmen, 13-13.5 (13.2); tarsus, 17-19.5 

 (18.4); middle toe, 11-12 (11.3).^^ 



AduJtfemale.—hewgtXx (skins), 126-131 (128); wing, 70-71.5 (70.7); 

 tail, 52-55 (53); exposed culmen, 12-14 (12.7); tarsus, 17-19 (18); 

 middle toe, 10.5-11 (10.7).^ 



Atlantic slope of Costa Rica (Jimenez), Nicaragua (Grey town; 

 Rio Escondido) , and Honduras (Santa Ana) ; Atlantic slope of Guate- 

 mala (Choctum) ?. 



(?) Pachyrhnviphns cinereiventns (not of Sclatei", 1862?') Sclater, Cat. Birds Brit. 

 Mas., xiv, 1888, 344, part (Choctum, Guatemala). — Salvin and Godman, Biol. 

 Centr.-Am., Aves, ii, 1890, 127, part (Choctum, Guatemala). 

 Pachyrhamphus cinereiventris Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 508 



(Greytown and Rio Escondido, Nicaragua; descr. nest and eggs). 

 Pachyrhamphus similis Cherrie, Proc. TJ. S. Nat. Mus., xiv, no. 855, Sept. 4, 



1891, 343, in text (Greytown, Nicaragua; coll. U. S. Nat. Mus.). 

 {Pachyrhamphus'] similis Sharpe, Hand-list, iii, 1901, 165. 

 Pachyrhamphus polychropterusl Lawrence, Ann. Lye. N. Y., viii, 1867, 182 



(Greytown, Nicaragua). 

 Pachyrhamphus major (not Bathmidnrus major Cabanis) Salvin and Godman, 

 Biol. Centr.-Am., Aves, ii, 1890, 127, part (Greytown, Nicaragua). 



PACHYRHAMPHUS DORSALIS Sclater. 

 BOGOTA BECARD. 



Similar to P. atricapillus (Gmelin),' but interscapular region uni- 

 form black, loral region darker gray (becoming black immediately in 

 front of eye), and without a grayish white or pale gray l)and across 

 anterior portion of forehead; in these characters agreeing ^\dth P. 

 polychropterus and P. p. cinereiventris but differing in very much paler 

 gray of under parts, lores, and rump, and in separation of black of 

 pileum from that of the back by a gray collar across hindneck. 



Adult male. — Pileum and nape black, the tips of the distinctly out- 

 lined feathers glossy blue-black or dark steel blue ; interscapular region 

 uniform black, separated from black of pileum and nape by a gray 

 collar across hindneck; whole rump and upper tail-coverts plain gray 

 (between no. 6 and slats-gray) ; tail black, the rectrices edged l)asally 

 (more or less distinctly) with gray and abruptly tipped with white, 

 this on outermost rectrix occupying, approximately, one-third of 

 outer and one-fourth of inner web, on other rectrices decreasing grad- 

 es Seven specimens. i> Three specimens. « gee p. 828. 



