254 TROCHILID®. 
Hab. Costa Rica, Cervantes (Carmiol *), Irazu (Rogers 3); Panama, Chiriqui 3, Cordil- 
lera de Tolé! (Arcé). 
A close ally of the well-known common species of the interior of Colombia, H. ludo- 
vicie, from which it differs in being generally darker in colour, the throat being nearly 
black, the glittering forehead of a bluer shade, and the wings rather shorter. These 
differences are more obvious in the adult male, the female being hardly separable from 
that sex of H. ludovicie. 
The first specimen that reached us of this bird was sent us by our collector, Enrique 
Arcé, who shot it in the Cordillera de Tolé, in the State of Panama. He subsequently 
obtained several other examples in the district of Chiriqui. The bird is also found in 
Costa Rica, whence we have several examples agreeing with the type. ‘There can be 
little doubt that H. veraguensis is an inhabitant of forests situated in the mountains at 
some elevation above the level of the sea. It is absent from the low-lying lands crossed 
by the railway, and in Colombia its near relative, //. ludovicie, occurs in the mountains 
near Bogota, at an elevation of from 8000 to 9000 feet above the sea-level. In Ecuador 
and Peru another allied form, //. rectirostris, occurs. In the former country Stolzmann 
found it both at Huambo and Chirimoto, at elevations ranging from 3700 to 8000 feet, 
and it was also not rare at Ray-Urmana, at an altitude of 7500 feet. This last-named 
bird only differs from H. dudovicie in its larger size and longer bill. 
b". Rostrum elongatum, arcuatum ; cauda longior, rotundata: sexus similes. 
GLAUCIS. 
Glaucis, Boie, Isis, 1831, p. 545; Salv. Cat. Birds Brit. Mus. xvi. p. 41. 
Though Gould includes no less than twelve species in the genus Glawcis, and another 
has since been proposed by Mr. Lawrence, it is now pretty generally admitted that 
there are only two definite species in the genus, viz. G. hirsuta and G. dohrni, the 
others having been based upon various stages of maturing individuals of G. hirsuta 
and the sexes of G. dohrni, or to belong to the genus Threnetes. 
In many respects Glaucis resembles Threnetes and the genus Phaethornis, a relation- 
ship suggested by the form of the bill, which is much arched in all these forms. 
Mr. Elliot goes so far as to merge Threnetes in Glaucis, but we believe their relation- 
ship to be quite remote. ‘he serration of the tomia in both maxilla and mandible is 
very evident in Glaucis, but not a trace of such a character can be found in Threnetes 
or in Phaethornis and the allied genera. Moreover, there are peculiarities in the 
coloration of the members of Threnetes suggestive of no near alliance to Glaucis. 
The bill of Glaucis is long and much arched, more so in the female than in the male, 
the serration of the tomia of the maxilla towards the end being very distinct, that of 
the mandible less so; the nasal covers are bare, and so also is the inter-ramal space ; 
