Brewster on Helm irith op hag a leucobronchialis. 219 
H. finus. Above yellowish-olive wing-bands white ; lores and post- 
ocular spot black ; cheeks, throat, and under parts generally, rich yellow. 
H. chrysoftera. Above bluish-ash ; wing-bands yellow ; throat, with a 
broad head-stripe, embracing the lores, cheeks, and auriculars, black 
(ashy in the female). Under parts white tinged with ashy on the sides. 
H. 'leucobronchialis. Upper surface, including wing-bars, as in chry- 
sofltera, but with the back and wings tinged with olive-green ; head-stripe 
restricted as in finus; throat, cheeks, and under parts silky-white, unlike 
either finiis or chry softer a; breast more or less strongly washed with 
yellow. 
H. lawrencei. Throat and head-stripes black, the latter embracing the 
cheeks and auriculars, as in chry softer a. ; wing-bands white, and general 
coloring yellow or olive-green, as in fiinus. 
From the above summary it will appear that neither leucobron- 
chialis nor lawrencei possesses any important original charac- 
ters. The former borrows its ashy back and yellow wing-bars from 
chrysojotera ; its restricted eye-stripe from fiinus ; — while the dif- 
ferential value of its white throat and under parts is materially 
affected by the usual presence of more or less yellow on the breast. 
Lawrencei has absolutely no peculiar markings or coloration ; it 
simply unites the black throat and broad head-stripes of chrysop- 
tera with the white wing-bands and general coloring of pinus. 
In either case there is simply a peculiar combination of borrowed 
characters. Let us see how constant these combinations are. 
No. 1,208 (Dr. Fisher’s collection, 9 ? Sing Sing, New York, 
July 24, 1881) is in every way similar to the type of leucobron- 
chialis save that the lores are more broadly black and the black 
of the post-ocular spot spreads backward and downward, embrac- 
ing nearly the whole of the auricular region. 
No. 1,235 (Dr. Fisher’s collection, A , Sing Sing, August 3, 
1881) differs from the type of leucobronchialis only in having a 
broad patch of pale yellow on the breast. A large proportion of 
the specimens previously reported have also exhibited this same 
peculiarity. 
No. 605 (Dr. Fisher’s collection, A , Sing 'Sing, August 24, 
1879) exhibits a faint wash of lemon-yellow on the throat, 
while a broad space across the breast is deep gamboge-yellow, 
and the wing-bands are pure white. 
No. 2,620 (author’s collection, 9 • adult, Nyack, N-ew-Je-rsey, DA 
May, 1878 ; presented by Eugene P. Bicknell) has the chin 
decidedly yellow ; the throat, cheeks, and a small space on the 
