100 XUKTII AMKinCAX UIKDS. 



b. \h'.u\ jiiitl iirrk asliy, paler on jn<rnliini, wli«'i\' the color fades gradually 

 into the white of hre.i'.t. Kiuup ami upper tail-coverts hrij;ht riiloiis. 



.". P. BuperciliosH.' An ulixtlrte whitish snpt.Teiliary stripe. Greater 

 win;i-e<»\erts (ili.>oU't<'ly whitish at tips; no other white Miai kiii<:s on 

 tipjicr parts, and the tail-patehe-; iudistinet. J/ah. Brazil. (Perhaps not 

 o-eniiine J*ijn'/ij.) 

 B« Sides ashy or tinired with oehraeeons ; lower tail-eoverts oehraceous, nc»t 

 sharitlv contrasted with white oi; tin al't'onien, or else the ahdomen concolor 

 witii tin- side. Head never Mac .v. and npper parts without li<rht markinirs 

 (except tiie witiir m/nscKs var. ulhicoUis). 

 a. WiiiL'-: and tail olive-L:r«'«Mi. 



(i. P. chloruTUS. Wiiole pilenni (except in yonn<r) deep nitons, sharply 

 delineil. Whole throat pm-e white, iininaonlate, and sharply delined 

 aprainst the surromiding deej> ash ; a maxillary and a short snpraloral 

 strij)e of white. Anterior parts of body streaked in yonnjr Hab. 

 Western Province of I'nited States. 

 h. ^^'iuu■s and tail ^nayish-hrown. 



7. F. fuscuB. A whitish or oehraceous patch coverinp: the throat con- 

 trasting' with the adjacent portions, and honnded by dusky specks. 

 Lores and chin like tlie throat. Hub. Mexico, and United States west 

 of Ilocky Mountains. (Five races.) 



8. P. aberti. Throat concolor with the adjacent portions, and without 

 distinct spots. Lores and chin blackish. Hab. Colorado region of 

 Middle Irovince, United Stales. (Only one form known.) 



SECTION I. 



Head black. 



Pipilo erythrophthalmus. 



After a carefnl study of tlio vorv^ larije collection of Black-headed Pipilos 

 (luaviii^i,' for the present the consideration of those with olive-green bodies) 

 in the Smithsonian Mnsenni, we have come finallv to the conclusion that all 

 tlie species described as havin*,' the scapidars and wing-coverts sj^otted with 

 white — as arcfiftt.<i, oretjotiifs, and iMfjKlonf/.r, and even including the difter- 

 ently colored I*. hunuJatus of Mexico — are probably only geographical races 

 of one species, rej resenting in the trans-Missouri region tlie P. ci'ythrophthal- 

 mus of the eastern division of the continent. It is true that specimens may 

 be selected of the four races capable of accurate definition, but the transition 



from forehead, .73 ; from nostril, .43. L*^gs : Tarsus, 1.24 ; middle too and claw, 1.10; claw 

 alone, .30 ; hind toe and claw, .85 ; «la\v alone, .50. No. 60,050, Mexico, is similar, in all 

 csst'ntial respects. 



From tin- analogies of the black Pipilos, it is reasonable to consider these two birds as distinct 

 species, or at least varieties, es]»ecially as the sjH'cimcn Ix'fore lis of that with unspotted wings 

 is marked male. The general appearance is otherwise much the same, the unsiK)tted bird rather 

 smaller, and without the dusky interscapular luarkings descrilxMl in mni-rouiij'. Should No. 50,225 

 represent a disthict si>ecies, it may be calletl P. chlorosoma, and distinguished as al)ove. (60,050, 

 Mexico, BorcAi:D."> 



1 Ptpih hftcralis {^ ATT.). EmlM-riza latt'mUs, Natt. Mils. Vind. MSS. Pnospiza lat. BuRM. 

 Th. Bras. TIT, Av. 2, p. 21.' Pipilo svpcrciliosa, Swatns. An. Menag. 311, 95, fig. 59. 



