254 TEOCHILTD^. 



Eab. Costa EiCA, Cervantes (Carmiol^), Irazu {Rogers^); Panama, Chiriqui 3, Cordil- 

 lera de Tole 1 {Arce). 



A close ally of the well-known common species of the interior of Colombia, //. ludo- 

 vicice, 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. ludovidoe. 



The first specimen that reached us of this bird was sent us by our collector, Enrique 

 Arce, who shot it in the Cordillera de Tole, in the State of Panama. He subsequently 

 obtained several other examples in the district of Chiriqui, The bird is also found in 

 Costa Eica, 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, H. ludovicice, 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 Eay-Urmana, at an altitude of 7500 feet. This last-named 

 bird only differs from H. ludovicice in its larger size and longer bill. 



b". nostrum 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 Glaucis, 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 Phaethoroiis, 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. The 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 aie bare, and so also is the inter-ramal space ; 



