354 Genera of Humming Birds. 



Habitat. — Guatemala to Colombia. 



Male. — Upperside shining green. Four median rectrices 

 shining greenish-bronze, next one shining bronze-green with 

 dark brownish spot on inner web near the inner tip which is 

 white, last lateral and outermost ones shining bronzy-green 

 Avith a subterminal blackish bar and broadly tipped with white. 

 Underside dull bronze-green passing to gray, with rufous tinge 

 on abdomen and flanks. Undertail-coverts bronzy-green 

 fringed with white. Wings purplish-brown. Maxilla black. 

 Mandible flesh colour for a little more than half its length, 

 rest black. 



Total length, 4^in. Wing, 2\. Tail, if. Culmen, |-. 



Female. — Exactly like the male. 



The differences between C. roberti, and this species are so 

 slight, that I cannot see how they can be separated. 



In one specimen which I have from Guatemala, the base of 

 the mandible is flesh colour, and the lateral rectrices have a 

 broader blackish subterminal bar, but the base is also bronzy- 

 green. 



It is a rare species. 



I have collected my specimens in Guatemala, Costa Rica, 

 and Colon. I have also one specimen collected by Arce, at 

 Chiriqui. 



The type of this species was discovered by Delattre, in 

 Guatemala, and it was dedicated by him and Bourcier, to the 

 eminent French Naturalist, Cuvier. 



Genus CXLIII. Campylopterus, Swainson, Zool. Journ., 



1826, p. 358. 



POLYTMUS, Gray, Gen. Birds, 1848. 



Platystylopterus, Reich., Aufz. der Colib., 1853, p. 11. 



LOXOPTERUS, Cab. and Heine, Mus. Hein., i860, t. iii,, 



P- ^3- 



Type : T. largipennis, Bodd. 



Bill long and curved, broad and flat at base. Wings ample, 

 shafts of primaries in the male broad and flat on their basal 

 half. Tail ample, rounded ; rectrices broad, outermost ones 

 shortest, the next one slightly longer, the rest of same length. 

 Size large, female smaller. Sexes alike in plumage. 



Habitat. — Guatemala, Guiana, Ecuador, Peru. 



