TROCHILUS latipennis. 



Grey Sickle-winged Humming Bird, 



Male and Female. 



Generic Character,— See PI. 82. 



Specific Character. 



T. viridi-aurens, siibtus carius; remigum primoriim Cinmarihus) scapis 

 dilatutu-incurvatis ; rectriciinn pennis 4 riiediis viridiOu.s apice 

 ?iigro, laleralihus albis basi nigra ; rostro vix recto. 



Golden green, beneath grey; greater quills (in the male) with 

 the shafts dilated and incurved. Four middle tail-feathers 

 green tipped with black, lateral feathers white with a black 

 base ; bill nearly straight. 



T. latipennis. Lath. In. Orn. \.p. 310. Gai. Zool. 8. 1. 318. 

 T. campylopterus. Gm. Sys. Nat. 499. n. 65. 

 L'O. mouche a larges tuyaux. VieiUot Ois. D'or.p. 21. p. 59. 

 Broad- shafted H. Bird. Lat/i. St/n. v. 2. p. 165. Gen. Zool. 8. 318. 



-I HE opinion I expressed on the unusual formation of the 

 wings in two species of Humming-birds, figured at pi. 83 

 and 107, appears to receive the fullest confirmation from the 

 birds here represented. One of these (pi. 131) is clearly 

 the T. latipennis, or Broad-shafted Hunmiing-bird of authors ; 

 while the other presents not the slightest difference except 

 in the shafts of the quills, which, instead of being thickened 

 and dilated, are of the ordinary size. 



Not having myself dissected these birds, I cannot de- 

 cidedly say they are male and female ; but I think no reason- 

 able doubt can remain that such is the fact, and that these 

 singular quill-feathers are characteristic only of the male sex. 



Both the birds are represented the size of life, and may 

 be included in one description : the upper plumage obscure 

 blueish green, glossed with a coppery or golden tinge and 

 shaded with brown, the plumage beneath entirely grey; 

 ears and sides of the neck the same, the latter with some 

 spots of greenish. Tail large, even, and broad ; the two middle 

 feathers green, tipt (in the male) with blackish ; the next pair 

 black, with the base green, and the extreme points whitish; 

 the remainder black, with their ends more or less white. 

 Wings violet brown, the shafts of the three outer quills, in 

 the male, dilated and compressed, but simple in the female. 

 Said to inhabit Cayenne. Although the bill of this species is 

 all but straight, it belongs naturally to the curved-bill division. 



PI. 130, 131. 



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