BIRDS OF NORTH AND MIDDLE AMERICA. 829 



(/. Larger (wing 72.5-83, tail 52-61); general color usually much darker or 



deeper, the under parts more ochraceous. (Southern Mexico to Ecuador.) 



Pachyrhamphus cinnaraomeus, adult male and female (p. 840) 



del. Smaller (wing ()6-7(). tail Hi 50 mm.): general color paler, the under parts 



more huffy Pachyrhamphus cinereus, adult female (p. 839) 



bb. Tail not wholly rufous-hrown i>r rufous-(awny. 



c. Tail partly black, wit li terminal portion rufous-tawny, cinnamoraeous, or Ijuffy; 

 under parts not l)arred. 

 d. Pileum lilack or black and rusty; back tawny or tawny brown. 



Pachyrhamphus major major, adult female and young (p. 834')» 

 dd. Pileum not black or partly black; back olive or olive-greenish. 

 ('. Pileum rufescont or rufescent brown. 

 /. A conspicuous black border to the rufous-brown pileum. (Costa Rica to 

 Colombia.). . .Pachyrhamphus ornatus, adult female and young (p.842)& 

 //'. No l)lack margin to the rufous-])r()wn pileum. 



Pachyrhamphus atricapillus, adult female (extralimital). 

 re. Pileum olive, not conspicuously ( if at all) different from color of back. 

 Pachyrhamphus polychropterus cinereiventris, adult female and young (pp. 830, 831) c 

 cc. Tail grayish brown (without black), the rectrices indistinctly edged with olive- 

 greenish; under parts more or less distinctly barred. 



Pachyrhamphus versicolor, adult female and young (p. 844) 



PACHYRHAMPHUS POLYCHROPTERUS CINEREIVENTRIS fSclater). 



GRAY-BELLIED BECARD. 



Adult male. — Pileum and nape black, the tips of the distinctly out- 

 lined feathers glossy blue-black or dark steel blue; hindneck and back 

 uniform black; rump and upper tail-coverts plain slate-gray or 

 plumbeous-gray, the upper portion of the "former sometimes black, 

 like the back; tail black, the lateral rectrices broadly tipped with 

 white, this much more extensive on outermost rectrix where occupy- 

 ing decidedly more of the outer than of inner web, decreasing gradually 

 but rapidly in extent toward the middle rectrices, which are some- 

 times narrowly tipped with white, sometimes wholly black; scapu- 

 lars with outer webs white, forming a conspicuous broad stripe along 

 each side of back; wings black, the middle and greater coverts broadly 

 tipped with white (forming two conspicuous bands), the secondaries 

 (sometimes greater coverts also) more or less distinctly edged (except 

 basally) with white, and outer web of outermost primary edged with 

 white; sides of head (including ioral, suborbital, auricular, and 

 malar regions), sides of neck, and entire under parts plain slate-gray 

 or plumbeous-gray, slightly paler posteriorly, especially on abdomen, 

 where sometimes faintly flecked or barred with paler gra}"; axillars 



a I have not a sufficient series of specimens to enable me to define the several geo- 

 graphic forms satisfactorily. 



'>This is po.ssil)ly the female of P. (dho-firiscus or /'. dorsnlis: if not, the adult male 

 is unknown. 



cThe females and young of I'. polychropUrus and its several geographic forms are so 

 much alike in coloration that without a larger series of specimens I am unable to dif- 

 ferentiate them satisfactorily. 



