388 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Of P. albilora there are in the collection two adnlt males and two 

 femaleSy as follows: Xo. 34101, S , Eealejo (Pacific coast of Nicaragua), 

 February, and 30551, 2 , same locality, July 10; No. 59584, S , Tehuan- 

 tepec City, November 11, and 57470, 5 , Sta. Eflgeuia, Teliuantepec, 

 December 25. Each of these specimens may be at once distinguished 

 from any examples of P. hilineaUi by the broad and distinct white edg- 

 ing to the tertials; and if not a distinct species, must be a connecting 

 link (possibly a hybrid) between P. Uucogastra and P. hiUneata, having 

 the conspicuously white-edged tertials of the former and the white lores 

 of the latter. That it is probably distinct from both these forms is 

 suggested by the tact that its habitat is mostly to the northward of the 

 district inhabited by P. bilineata and P. leucogastra together, although 

 to the southward (i. e., in Guatemala and Nicaragua) the three are 

 found in the same localities. 



P. Mlineafa is represented by a considerable series, embracing speci- 

 mens from Venezuela, Panama, Yeragua, Costa Eica, Nicaragua (Grey- 

 town), and Guatemala. The species is well defined, an adult male each 

 from the first and last localities mentioned above beiug undistiuguish- 

 able, except that one is in somewhat worn, the other in fresh and soft, 

 plumage. An adult female from Venezuela is likewise undistingnish- 

 able from northern specimens. 



Granting that P. buffoni has always the lateral tail-feather white ex- 

 cept at the extreme concealed base, it may thus be distinguished Irom 

 P. leucogastra., but of this species or race I have been able to examine 

 but a single specimen, an adult female from Demerara (No. 55101, U. 

 S. Nat. Mus.). This seems very distinct from the female of all the forms 

 discussed above. The npper parts are a decidedly paler and bluer gray, 

 almost exactly as in P. ca^rulea; the lateral pair of rectrices have the 

 exposed portion entirely white, only the extreme concealed base being 

 black; the greater wing-coverts are ranch paler gray than the back, 

 and pass into grayish white at the tip; this white and also that on 

 the outer webs of the tertials shows in very abrupt and striking con- 

 trast to the deep black of the primaries, primary coverts, and alulae. 

 The lores of this specimen are light grayish, aud there is a distinct 

 supraocular spot of white. 



Upon the whole, it appears, from the material examined, that the 

 following species, or at least well-nmrked races, of black-capped Foliop- 

 tilw, may be recognized as be longing to Central and South America: 

 A; Pileum and lores wholly black in fully adult males. 



a. Lateral tail-feather wholly white for exposed portion. 



1. P. BUFFONI. Tertials broadly edged with pure white. (Cay- 



enne.) 



b. Lateral tail-feather black at base, this usnally showing consid- 



erably beyond the coverts. 



2. P. LEUCOGASTRA. Tertials broadly edged with pure white. 



(Bahia, Bogota, Venezuela, Colombia, Nicaragua.) 



