3"22 Genera of Humming Birds. 



Total length, 4fin. Wing, 2|. Tail, 2. Culmen, f. 



Female. — Like the male, but paler in colouration. The 

 specimens which I have from Merume Mountains, British 

 Guiana, are darker than the specimens from Guatemala, 

 Veragua, Trinidad, Colombia, and Ecuador. 



FAMILY XV. LAMPORNIDAE, 



OR Family of Mango Humming-birds. 



Size moderately large. Bill serrated, stout, more or less 

 curved, upturned in the genus Avocettula, feathered at base; 

 nasal covers partially exposed. Wings long, reaching the 

 end of tail. Tail rounded in the genus Sericotes, slightly 

 forked in the genera Hvpnroptila and Eiilampis, forked in the 

 genus Lampornis. Rectrices broad, brilliant metallic in the 

 genus Avocettula ; lateral rectrices metallic purple or reddish- 

 purple in the other genera. Undertail-coverts normal, except 

 in the genus Hypiiroptila , in which they are large and full. 

 Sexes unlike, except in the genera Eiilamp/'s and Sericotes. 



Type : Lampornis, Svvainson, Zool. Journ., 1827, 

 vol. iii., p. 358. 



Range. — Mexico to Ecuador, Brasilia, Guiana, Trinidad 

 and West Indies. 



Genus CXXX. Hypuroptila, Gould, Mon. Troch., 1S54, 



vol. ii., pi. 8g. 



Chalybura, Reich., Aufz. der Colib., 1854, p. 10. 



Methon, Muls., Cat. Ois. Mou., 1875, p. 7. 



Type: T. buffoni, Lesson. 



Bill stout, straight, slightly curved, and acutely pointed at 

 tips, longer than the head. Wings long, reaching the end of 

 tail. Tail long, slightly forked. Median rectrices shortest, 

 lateral and outermost ones very slightly and gradually longer. 

 Undertail-coverts greatlv developed, plume like. Sexes un- 

 like. 



Habitat. — Costa Rica, Veragua, Venezuela, Colombia, and 

 Ecuador. 



441. Hypuroptila buffoni. Less., Trochil, 1831, p. 34. 

 Polvtmiis buffoni, Gray, Gen. Birds, vol. i., p. 108. 



