BIRDS OP NORTH AND MIDDLE AMERICA. 507 



Adult male.— Length (skins), 161-190 (177.1); wing, 73-77 (75.8); 

 tail, 63-71 (68); exposed culmen, 22-24 (22.9); tarsus, 26-27 (26); 

 middle toe, 16-18 (17).« 



Adult female.— Length (skins), 165-172 (167.4); wing, 70-72 (71.2); 

 tail, 63-65(64); exposed culmen, 20-22 (21); tarsus, 25; middle toe, 16.^ 



Pacific coast of Chiapas (Huehuetan; San Benito), " and thence into 

 adjacent parts of Guatemala." " 



Heleodytes capistratus nigricaudaius Nelson, Auk, xiv, Jan., 1897, 70 (San Benito, 

 Chiapas, s. w. Mexico; coll. U. S. Nat. Mus. ). 



HELEODYTES RUFINUCHA '(Lafresnaye). 

 RTJFOUS-NAPED CACTUS WREN. 



Somewhat like summer adults of IT. capistratus, but smaller, the 

 back much less reddish brown, and always conspiciously variegated; 

 superciliary stripe and under parts less buffy white; under parts 

 always more or less speckled or flecked with dusky (at least on sides 

 and flanks), and under tail-coverts barred with black. 



Adults (sexes alike). — Pileum uniform black, the occiput sometimes 

 tinged with brown; hindneck mummy brown or dark russet; back, 

 scapulars, and rump brown (varying from prouts brown to broccoli 

 brown or drab), conspicuously variegated with white streaks (these 

 narrower and linear on rump, broader, occasionaly spot-like, on back 

 and scapulars), the white streaks margined laterally with black; upper 

 tail-coverts brown (slightly paler than rump) more or less distinctly 

 barred with black or dusky; two middle rectrices pale grayish brown, 

 more or less distinctly barred with black, the black bars interrupted 

 medially; rest of tail dull black, broadly tipped with white, this pass- 

 ing into pale grayish brown terminally; outer webs of rectrices 

 broadly barred or transversely spotted with white (this sometimes 

 tinged with pale grayish brown) ; wings blackish, conspicuously banded 

 and spotted with pale grayish brown and whitish, the spots on outer 

 webs of primaries, primary coverts, and alula, decidedly white or 

 whitish; a broad superciliary stripe of white; a broad postocular stripe 

 of black; lores grayish; sides of head (below lores and black postocular 

 stripe) and under parts dull white, the flanks and anal region tinged 

 with pale buffy grayish brown; under parts, except chin and throat, 

 more or less speckled or flecked with diisky; '^ under tail-coverts barred 

 (usually irregularly) with black; bill black or dusky, the mandible 

 paler basally, especially on under side; iris red;* legs and feet horn 

 color (in dried skins). 



« Six specimens. 

 b Five specimens. 

 "Nelson, Auk, xiv, 1897, 70. 



''There is usually a more or less distinct trace of a black submalar streak; occa- 

 sionally this is quite distinct. 

 « Dr. C. Sartorius, manuscript. 



