lURDS OF NOKTH AND MIDDLK AMERICA. <>t)9 



,/./. I'iU-uiu more or less distinctly brown nii-diully, mt else tln-uat di^tincti)- 



streaked with black; black postocnlar ntriiH' hmadt-r, not extemled 



anteriorly beneath eye. 



f. Back, etc., lighter chestnut-brown or rnfous-hrown; flanks deep russet, 



throat (usually) more distinctly streaked; bill larger (exposed culmen 



14.5-16.5). (Costa Rica and Chiriciui. ) 



Henicorhina leucophrys collina (p. 613) 

 i-r. Rack, etc., dark chestnut: Hanks chestnut; tlimat indistinctly streaked; 

 liill smaller (exposed culmen l.'!..")). ( i';astcrn < iuatemala. ) 



Henicorhina leucophrys castanea (p. 615) 

 cc. Coloration paler, the i)ilenm l)r()\vn with narrow black lateral margin; l)ack, 

 etc., tawny-ltrown, russet, or rusty brown; flanks tawny-brown or light 

 russet. 

 (/. Pileum dark sooty brown or sooty grayish broadly margined laterally with 

 1)lack. 

 e. Pileum sooty brown; back brighter rusty brown; Hanks brighter tawny- 

 1)ro\vn or russet. (Western Ecuador. ) 



Henicorhina leucophrys berlepschi (extralimital)" 

 rr. Pileum sooty grayish; back duller, more olive, brown; flanks duller 

 tawny-brown or tawny-olive. ( Western (iuatemala and Chiapas. ) 



Henicorhina leucophrys capitalis (p. 61.')) 

 :hl. Pileum lighter l)rown (nearly concolor with back), very narrowly if at ail 

 margined laterally with black. 

 e. Pileum, hindneck, and upper back tawny-brown or mummy brown. 



(Southeastern Mexico.) Henicorhina leucophrys mexicana (p. 6U-) 



rr. Pileum, hindneck, and upper back grayish brown. (Southwestern 



Mexico.) Henicorhina leucophrys festiva (p. 61(i) 



bh. Breast very pale gray (almost grayish white). {Ilniirnrhiii'i hilarls.) 



c. Lighter and more tawny brown above, the pileum and hindneck more olive 



brown; tail lighter brown, more broadly and regularly barred with dusky; 



bill smaller (exposed culmen 12.5-14). 



d. Smaller, except bill (wing 5.S.5, tail 28, tarsus 23) ; chest paler gray, throat 



tinged with buff, and abdomen more extensively suffused with buff. 



(western Ecuador. ) Henicorhina hilaris hilaris (extralimital ) '' 



dd. Larger, excei)t bill (wing 5(5, tail :50, tarsus 25.5);'- chest deeper gray, 

 throat without buff tinge, and abdomen less extensively suffused with 

 buff. (High mountains of Santa ]\Lirta, Colond)ia, 11,000 to 12,000 feet 

 altitude.) Henicorhina hilaris anachoreta (extralimital)'' 



a Henicorhina leucophnjH (not Troglodntt's kvcophryx Tschudi) Berlepsch and 

 Taczanowski, Proc. Zool. Soc. Lond., 1883, 539 (Chimbo, w. Ecuador; crit.).— 

 Iknkorhlwi liilnris, part, Berlepsch and Taczanowski, Proc. Zool. Soc. Lond., 1884, 

 284 part (specimen from Pedregal, w. Ecuador).— //e)itcor/iin«. leucophrys berlepschi 

 Rid'gway, Proc. Biol. Soc. Wash., xvi, Nov. 30, 1903, 168 (Chimbo, w. Ecuador; 

 coll. Am. Mus. Nat. Hist.). 



''Hcnicorhind hilaris Berlepsch and Taczanowski, Proc. Zool. Soc. Lon<l., 1SS4, 2S4 

 (Cayandeled and Chaguarpata, w. Ecuador). A cotype of this form, received from 

 Count von Berlepsch, is in the National Museum collection. 



cThe measurements given of //. h. Itilaris and //. /(. (itiarhnrrla are of a single adult 



male of each. 



dllenicorhina iniarhorrl't P.angs, Proc. New lOngl. Z«x)l. Club, i, Dec. 27, 1899, 84 

 (Paramo de Chirmiua, Sierra Neva<la de Santa >hirta, Colombia, 12,000 It. alt.: coll. 

 E. A. and (). Bangs). 



1()3S4 VOL ;i— 03 8U 



