726 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
iris dark brown; legs and feet brownish (in dried skins) the toes 
darker terminally. 
Adult male.—Length (skins), 97-107 (102); wing, 108.5-116.5 
(111.1); tail, 37-41.5 (89.2); exposed culmen, 4.5-6 (5.2); tarsus, 
9.5-10.5 (10.1); middle toe, 7-7.5 (7.3).¢ 
Adult female—Length (skins), 97-106 (101); wing, 108.5-116 
(110.9); tail, 39-42 (40.3); exposed culmen, 4.5-5.5 (4.9); tarsus, 
10-10.5 (10.2); middle toe, 7-7.5 (7.4).® 
Southwestern Costa Rica (Pozo Azdél de Pirris; El General) and 
southward through Panam4é (Bugaba, Chiriqui; Volcan de Chiriquf) 
to northern Colombia (Cacagualita, Santa Marta; Naranjo, west of 
Bucaramanga). (Also said to occur at Paré and Santarém on the 
lower Amazon;¢ but until the birds of this group can be carefully 
revised with the aid of ample material I have doubts as to the correct 
identification of specimens from the localities mentioned.) 
Chetura fumosa Sauvin, Proc. Zool. Soc. Lond., Aug. 1, 1870, 204 (Bugaba, 
Chiriqui, Panamé4; coll. Salvin and Godman).—Wyarr, Ibis, 1871, 375 
(Naranjo, 2,500 ft., Colombia).—Harrert, Cat. Birds Grit. Mus., xvi, 1892, 
483 (Bugaba, Panam4;? Santarém and Pard, lower Amazon).—Satvin and 
Gopman, Biol. Centr.-Am., Aves, ii, 1894, 377, part (Bugaba; Volcan de 
Chiriquf; Colombia;? Santarém;? Par4). 
[Chztura] fumosa SctaTER and Satvin, Nom. Av. Neotr., 1873, 95.—SHARPE, 
Hand-list, ii, 1900, 92. 
Ch{ztura] fumosa Hartert, Das Tierreich, Podarg., Caprim., Macropt., 1897, 75. 
Chetura spinicauda fumosa Banas, Proc. New Engl. Zool. Club, iv, March 19, 
1908, 25, 26 (Pozo Aztl de Pirrfs, w. Costa Rica; crit.).—Hztimayr, Verh. 
Orn. Gesellsch. Bayern, viii, 1908, 160 (synonymy; descr.).—CaRRIKER, 
Ann. Carnegie Mus., vi,1910, 508 (Pacific lowlands of Costa Rica). 
(?) Chetura spinicauda (not Cypselus spinicaudus Temminck) Layarp, Ibis, 1873, 
389 (Par4). 
@ Nine specimens, from Costa Rica. + Ten specimens, from Costa Rica. 
Ex- . 
Locality. _ | Wing. | Tail. | posed | Tarsus. aa 
iculmen bi 
MALES AND SEX UNDETERMINED. 
Nine adult males of C. c. fumosa from w. Costa Rica........... 111.1 : 39, 2 5.2 10.1 7.3 
Six adult males of C. c. phxopygos from e. Costa Rica,......... 107.1 39 5 9.9 7.2 
One adult male of C.c.lawrencei from Margarita Is., Venezuela..} 104 40 5 aaa 7 
Two adults (sex not determined) of C. c. cinereiventris from 
BOT oiu2 ss siseis ssid sGsiosetind wise coca as Sage wae Giekeaeeeunae 110 42 4.7 11.5 
One adult (sex not determined) of C. spinicauda from Cayenne.| 108.5 40.5 4 10.5 6.5 
FEMALES. 
Ten adult females of C. c. fumosa from w. Costa Rica.......... 110.9 40.3 4.9 10.2 7.4 
Three adult females of C. c. phwopygos from e. Costa Rica...-. 105. 7 38.8 4.8 10.2 7.2 
One adult female of C. c. lawrencei from Grenada..........-... 106. 5 42.5 4 10.5 6.5 
One adult female of C. spinicauda from British Guiana.........} 101 38.5 |... lee. 10 7.5 
c According to Hartert, Cat. Birds Brit. Mus., xvi, 1892, 483. 
