1887.] PROCEEDINGS OE UNITEJ) STATES NATIONAL MUSEUM. 505 



DESCRIPTIONS Or SOME NEW SPECIES AND SUBSPECIES OF 

 BIRDS FROM MIDDLE AMERICA. 



1 Gathariis fumosxis, sp. nov. 



Calharus mcxicamis, SCL., P. Z. S. 1B6G, 69 (p:ut; spec, ex Costa Rica). — Lawr., 

 Anu.Lyc.N.Y. ix, 18G8,90 (Costa Rica).— Salvin. P. Z. S. 1870, 179 (Ver- 

 agua).— ScL. & Salv., Norn. Neotr 1873, 1 (part).— Salv. & Godm., Biol. 

 Ceutr. Am. i, 1879, 6 (part ; Costa Rica ; Veragua). 



Habitat— Costii Eica and Veragua. 



Sp. CHAR. — Similar to C. mcxicanus (Bp.), but ratlier larger and the 

 coloration much darker; the upper parts (except head) dark suioky 

 olive, with centers of feathers on back blackish, and inner webs of tail- 

 feathers decidedly blackish ; lower parts deep smoky gray becoming dull 

 buffy white (not pure white, as in G. mcxiccmiis) only on narrow median 

 line of belly, and the under tail-coverts nearly pure white instead of 

 decidedly buflfy. 



Adult male (No. 101765, Costa Eica, October 20, 1884; JoseC. Zeledon): 

 Head uniform black, lightening gradually below through grayish dusky 

 on malar region to light smoky gray on chin and throat; rest of upper 

 parts deep smoky olive (without the brownish cast of C. mexicanus)', 

 the feathers of the back dusky slate or blackish centrally (this mostly 

 concealed, however) ; inner webs of tail-feathers and larger wing- feathers 

 blackish dusky ; lower parts smoky gray, somewhat paler or slightly 

 mixed with whitish (more buffy anteriorly) on chin and throat, strongly 

 washed with olive on sides of breast (feathers of chest and median line 

 of breast also narrowly margined with this color) ; median line of belly 

 and anal region dull buffy white ; nnder tail-coverts nearly pure white, 

 the shorter feathers edged with smoky-grayish. " Bill and eyelids orange- 

 red, culmen black, iris dark-brown, feet and legs lemon-yellow." (Zel- 

 edon, MS.) Length (dried skin), 6.25; wing, 3.60; tail, 2.60; exposed 

 culmen, .58 ; depth of bill at base, .20 ; tarsus, 1.20 ; middle toe, .70. 



Although I have only one specimen of each for comparison, there can 

 not, I think, be any question of the propriety of separating this bird from 

 true G. mexicanus. The example of the latter, which has been examined 

 in this connection, is one from Guatemala, belonging to the collection 

 of Mr. George X. Lawrence, but since it agrees very closely with descrip- 

 tions of Mexican specimens, I have no doubt it belongs to the same form. 



Apart from the differences pointed out in the diagnosis, it may be men- 

 tioned that the color of the wings and tail is entirely different in the two 

 species, being dusky brown with bister-brown edgings in G. mexicanua^ 

 and slaty black with olivaceous edgings in G.fumosus. 



