GEOTHLYPIS. 993 
scribed is in full spring plumage, without any clouding of the black 
mask. It is very different from G. speciosa, Scl. 
Smith-/Coll | Sex 
mith-|Collec-| Se . 
sonian| tor’s | aud Locality. Pint ans Received from Collected by 
No. No. | Age. o ec: 
26,372 | .. | 3 Mexico. | Be Tidehider. (WO | atmo ae 
(26,372.) Type of species, 
Geothlypis velata. 
Sylvia velata, Viettu. Ois. Am. Sept. II, 1807, 22, pl. lxxiv.—D’Ors. 
Voy. IV, 217.—Trichas velata, Sw. ; Burm. Uebers. III, 1856, 115. 
— Geothlypis vel. Cas. Mus. Hein. 1850, 16.—Scrater, Catal. 1861, 
27, no. 170. 
Sylvia canicapilla, Max. Beit. III, 701 (Brazil). 
Hab. Brazil. alee 
(No. 24,042.) Bill slender, conical, much as in G. macgillivrayi, the culmen 
nearly straight. First quill about equal to the 8th; the 4th longest. Color - 
Geothlypis speciosa, ScLATER. 
Geothlypis speciosa, Scuater, P. Z. 8. 1858, 447 (Mexico).—Is. Catal. 
1861, 27, no. 169. 
Hab. Eastern Mexico. 
“Bright oil yellow; head, especially on the sides, with the auricular region, 
black; quills blackish-brown; beneath bright yellow, the sides brownish, 
under wing coverts yellow; bill black; feet dusky flesh color. Length, 5.30; 
wing, 2.40; tail, 2.30.’’—/Sclater. 
I have not seen this strongly marked species, which differs from G. trichas 
apparently in the wider black mask, absence of hoary margin to the mask, 
and in uniform yellow of under parts, including lining of wings. The tarsi, 
toes, and claws are longer. In these respects, as well as in the coloration of 
the under parts, it agrees with G. melanops; but lacks the white head of the 
latter, in which, too, the black extends rather less on the forehead than even 
in G. trichas. 
Geothlypis semiflavus, Sclater (G. semiflavus, Sclater, Pr. Z. 1860, 273, 291. 
—Ib. Catal. 1861, 27, no. 168, Ecuador), is said to agree with the last men- 
tioned, in most points, but to differ in paler olive above, and purer yellow 
beneath. The black of the cheeks extends far down on the sides of the neck, 
and on the forehead reaches to above the eyes. The three black-faced 
Geothlypi, therefore, of the regions south of the United States, agree in the 
purer and more continuous yellow beneath, and longer toes. An interesting 
coincidence in this respect is seen with the chestnut-headed Basileuteri—B. 
rufifrons and G. trichas, the more northern species having the whitish belly ; 
B. dellatrii and G. speciosa, from the middle region, having this more yellow; 
while the South American B. mesochrysus and G. semiflavus have the yellow 
of greatest intensity. 
