2 
270 TROCHILIDA. 
Eupherusa. Yt was then separated as a subgenus under the title Clotho, which being 
used elsewhere in zoology, was supplanted by Callipharus by Mr. Elliot in 1879. 
The position assigned to the genus has always been near HLupherusa; and this we 
think correct, for the structure of the bill is similar as well as other points of resem- 
blance. 
From Microchera it differs in having the crown black and the nasal covers partly 
exposed. 
The distribution of the genus is that of the single species which follows. 
1. Callipharus nigriventris. (Lupherusa nigriventris, Tab. LVI. figg. 34, 
49.) 
Eupherusa nigriventris, Lawr. Pr. Ac. Phil. 1867, p. 9321; Ann. Lyc. N. Y. ix. p. 1277; Salv. 
P. Z. S. 1870, p. 210°; Muls. Hist. Nat. Ois.-Mouches, i. p. 270, t. 23%. 
Callipharus nigriventris, Elliot, Syn. Troch. p. 211°; Sharpe, in Gould’s Mon. Troch., Suppl. 
t. 56° (Mar. 1887) ; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 122"; Salv. Cat. Birds 
Brit. Mus. xvi. p. 67°. 
Supra nitenti-cupreo-viridis, tectricibus supracaudalibus longioribus et rectricibus quatuor intermediis magis 
saturate cupreis ; pileo et corpore subtus omnino nigris, tectricibus subcaudalibus et rectricibus tribus 
utrinque albis; alis purpureo-nigris, primariis interioribus et secundariis ad basin castaneis: rostro nigro. 
Long. tota 3°5, ale 1-9, caude 1°15, rostri a rictu 0°65. 
Q supra omino viridis, pileo vix obscuriore, capitis lateribus fuscis ; subtus sordide alba, tectricibus subcaudalibus 
et rectricibus lateralibus sicut in mare albis. (Descr. maris et femine ex Cordillera del Chucu, Panama. 
Mus. nostr.) 
Hab. Costa Rica (Carmiol ®, Endres +), Cervantes (Cooper), Naranjo de Cartago (Zeéle- 
don”), Peorsnada (Zeledon, in U.S. Nat. Mus.); Panama, Cordillera del Chucu °, 
Calobre (Arcé). 
Mr. Lawrence’s type of this species formed part of a small collection of birds made 
in Costa Rica by the botanical traveller A. R. Endres, and sent by him to the United 
States National Museum. Other specimens reached this country from the same source, 
and also from the well-known collector Julian Carmiol. In the higher parts of the 
State of Panama this bird is also found, as Arcé sent us a good series of specimens, 
including adults of both sexes and young males, from the Cordillera del Chucu and 
other places in the same district. 
In young males the feathers of the mature plumage begin to appear in the middle 
of the under surface, and gradually spread to the sides, and lastly cover the crown. 
b>, Rostrum sensim arcuatum; rectrices laterales ad basin albe. 
c& Rostrum longius, rectius. 
EUPHERUSA. 
Eupherusa, Gould, Mon. Troch. vy. t. 824 (Sept. 1857); Salv. Cat. Rirds Brit. Mus. xvi. p. 72. 
Three species now constitute this genus, all of them belonging exclusively to our 
