388 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



KEY TO THE CENTRAL AMERICAN SUBSPECIES OF MALACOPTILA PANAMENSIS. 



a. Pileum and hindneck rufescent brown, the remaining upper parts more decidedly 

 rufescent; chest ochraceous-buff to tawny. (Adult males.) 

 b. Breast and sides conspicuously striped; chest tawny-ochraceous to tawny . (East- 

 ern Panama to western Costa Rica.) 



Malacoptila panamensis panamensis, adult male (p. 388). 

 bb. Breast and sides indistinctly striped; chest ochraceous-buff. (Eastern Costa 

 Rica to extreme southern Mexico.) 



Malacoptila panamensis inornata, adult male (p. 391). 

 aa. Pileum and hindneck grayish brown to nearly gray, the remaining upper parts 

 more decidedly brown; chest buff to nearly white. (Adult females.) 

 b. Breast and sides more distinctly striped; buff of chest deeper. 



Malacoptila panamensis panamensis, adult female (p. 389). 

 66. Breast and sides less distinctly striped ; buff of chest paler. 



Malacoptila panamensis inornata, adult female (p. 391). 



MALACOPTILA PANAMENSIS PANAMENSIS Lafresnaye. 



FANAHl MALACOPTILA. 



Adult male. — ^Above mummy brown or prouts brown to chestnut- 

 brown, passing into russet or chestnut on upper tail-coverts, the 

 feathers of back, scapulars, and wing-coverts with a terminal spot of 

 pale tawny or brownish buffy, the pileum usually similarly but less 

 distinctly spotted, but the spots changing on forehead into narrow 

 streaks; secondaries darker brown than wing-coverts, narrowly 

 edged distally with rusty brown; primaries dusky, the larger quills 

 with median portion of outer web light rusty brown or dull light 

 tawny; tail chestnut-brown or chestnut; orbital region (especially 

 the superciliary portion) tawny, passing into paler on lores, which 

 together with anterior portion of forehead are sometimes slightly 

 intermixed with white; auricular region brown (passing into tawny on 

 upper portion), narrowly and rather indistinctly streaked with 

 tawny; subauricular (postmalar) region darker brown, with broader 

 and very distinct streaks of tawny; pendent mustache-like tufts on 

 anterior portion of malar region white, sometimes tinged or inter- 

 mixed with tawny; chin and sides of throat brown, the feathers with 

 whitish shaft-streaks; median portion of throat and upper chest, 

 plain tawny or tawny-buff; rest of under parts mostly pale buff or 

 buffy whitish, the feathers of breast and sides broadly edged with 

 brown and dusky, forming conspicuous broad streaks, which become 

 indistinct or obsolete on flanks; under tail-coverts buff or brownish 

 buff; under wing-coverts tawny-ochraceous; inner webs of remiges 

 broadly edged for proximal half with ochraceous-buff; maxilla dark 

 horn color to nearly black, sometimes paler on basal portion of culmen ; 

 mandible pale dull yellowish (grayish in life?) dusky at tip; iris red- 

 dish brown to chestnut-red; legs and feet dusky (grayish in life?); 

 length (skins), 170-190 (177); wing, 81.5-91 (86.7); tail, 67-81 



