252 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



buff (V-shaped) on each feather, more apparent on the outer rectrices. 

 Leaser wing-coverts dark grayish brown, distinctly bordered with dull 

 (fchraceous; middle coverts with the concealed portion brownish-gray; 

 this succeeded by a paler grayish shade, the most of the exposed portion 

 being opaque velvety-black, forming a distinct broad band ; secondaries 

 metallic dark bluish-green, changing to blue and violet, this succeeded 

 by a subterminal band of opaque velvety-black, about .25 in width, and 

 this by a terminal band of pure white of the same width ; outer webs 

 of the two lower tertials opaque black, the rest grayish-brown, more 

 brown on outer webs; primaries brownish-slate, with slightly paler 

 edges. Bill dusky (probably dark olivaceous in life) ; legs and feet light 

 yellowish-brown (probably orange in life). Wing, 9.00 ; tail, 3.65 ; cul- 

 men, 1.75; greatest width of bill, .G8 ; depth of maxilla, through base, 

 .55; tarsus, 1.40; middle toe, 1.70. [Described from No. 20,319 U. S. 

 Nat. Mus.J 



Unlike the somewhat similar species from Mazatlan (A.aberti), as well 

 as the female of A. boschas and both sexes of A. fulvigula, the whole 

 throat is densely streaked, like the neck. The entire lining of the wing, 

 with the axillars, is pure white, as in allied species. 



Gray's Hand list quotes, under A. boschas, an "A.freycineti, Bp.", with 

 the locality " Sandwich I." standing opposite. No indication is given, 

 however, as to where Bonaparte's bird is described, and I have been 

 unable to find any further clue. Should the locality of "A.frcycineti " be 

 the Sandwich Islands, it is very probable that this is the same species. 



The female of A. wyvilliana scarcely needs comparison with that of 

 A. boschas. It is much smaller, the colors altogether darker, the specu- 

 lum green instead of violet, and preceded by a wide blade instead of a 

 wide white bar. The white ocular ring is also a peculiar feature. 



November 18, 1878. 



DESCRIPTION OF TWO NEW SPECIES OF BIRDS FROUI COSTA 

 RICA, AND NOTES ON OTHER RARE SPECIES FROITI THAT 

 COUNTRY. 



By ROBERT RIDOWAF. 



A small collection of birds brought from Costa Rica by Mr. Jos6 C. 

 Zeledon includes several exceedingly rare and interesting species, 

 among which may be mentioned a young male of Carpodcctes nitidas, 

 a second specimen of Porzana cinereiceps, Lawr., the recently described 

 " Zonotrichia" vulcani, and Phccnoptila melanoxantha, besides Pyrgisoma 

 capitalis, Panterpe insignis, Geotrygon costaricensis, etc. In addition to 

 the above are the two following, which are believed to be undescribed : — 



1 . — THE YOPHILUS ZELEDONI (Lawrence, MS.)- 



Sp. CH.— Wing, 2.50-2.G0; tail, 2.15-2.45} bill, from nostril, .48-.50; 

 tarsus, 1.00; middle toe, .62-.G5. 



