74 NELSON, Wew Birds from Mexico and Guatemala. [jan 
north of the Isthmus of Panama. Unfortunately there is no 
series of specimens at hand to determine the relationship between 
the birds of Costa Rica and those of South America. Leaving 
birds from the last two regions out of the question, we have in 
Guatemala and Chiapas a bird similar in general style and mark- 
ing to the Costa Rican ones, but readily separable from them, 
which I recognize as a geographical race of South American 
leucophrys. These birds are found in suitable places from Guate- 
mala to the Isthmus of Tehuantepec. The low country of the 
Isthmus forms an abrupt cut-off, and beyond that, when the 
southern end of the Sierra Madre is reached, we find a very 
distinct bird which occurs along both coasts and which I have 
recognized as specifically distinct from the others. 
The series of eighteen specimens at hand from the two sides of 
the Isthmus of Tehuantepec, Chiapas and Oaxaca, show no signs 
of approach to one another, and the young birds in their first 
plumages are also readily distinguishable. 
Henicorhina leucophrys capitalis, new subspecies. GRay- 
CROWNED Woop WREN, 
Type, No. 143018, U. S. Nat. Museum, Dept. Agric. coll., &, Pinabete, 
Chiapas, Mexico, February 8, 1896. Collected by E. W. Nelson and E. A. 
Goldman (Orig. No. 3439)- 
Distribution.— Heavily wooded mountain slopes in the ‘ tierra templada ’ 
on both sides of Chiapas and thence into adjacent parts of Guatemala. 
Description.— A broad band of dark gray extends from the base of the 
upper mandible back along the top of the head to the fore part of the 
shoulder and is bordered on each side by a narrower dark line which is 
black or blackish. The sides of the head and neck as well as the lower 
parts are very similar to the same parts in mexicana. The back and rump 
are dark rufous in strong contrast to the color on the top of the head and 
neck, the line of demarcation being very well defined. 
Specimens from the Volcan de Fuego, in Guatemala, belong to 
this race although inclining somewhat toward the birds of Costa 
Rica. The latter, however, are easily distinguished from capitals 
by their uniformly dark color on the top of the head and neck, and 
probably represent another race separable from true /eucophrys. 
