300 Genera of Humming Birds. 



feathers on upper part of back. Tail glossy dark green. 

 Spot behind the eye white. Throat metallic crimson. A line 

 from mandible, and the elongated feathers of throat glittering 

 deep blue. Underside glittering deep blue. Undertail- 

 coverts dark green. Vent and spot on side of flanks white. 

 Wings purplish-brown. Bill black. 



Total length, 5in. Wing, 2 J. Tail, 2|-. Culmen, i|^. 



Female. — Upperside golden-green. Lateral and outermost 

 rectrices tipped with white. Underside grayish-white washed 

 sparingly with green on sides of breast and flanks. 



Total length, \V\\\. Wing, 2f. Tail, if. Culmen, \\. 



The discoverer of this fine and rare species is probably Mr. 

 Felix de Azara. 



Genus CXXIII. Lepidolarynx, Reich., Aufz. der Colib., 



1853, P- 13- 

 Orxithomva, Bon., Rev. and Mag. ZooL, 1854, p. 251. 



Type : T. 7nesoleiicus, Temminck. 



Bill straight, twice as long as the head. Feathers of fore- 

 head advancing to a point on the maxilla. Tail forked. 

 Rectrices narrow, median rectrices shortest, laterals slightly 

 and gradually longer, outermost ones longer than the third 

 lateral, and shorter than the fourth. Sexes unlike. 



Habitat. — Brazil. 



417. Lepidolar\nx mesoleucus, Temm., pi. Color., pi. 317. 



Trochilus squamosum, Temm., PI. Color., pi. 203. 



Trochihis rnystacinus, Vieill., Ois. Dorés, t. iii., pi. 21. 



Mellisu^a squamosus, Steph., Gen. ZooL, vol. xiv., p. 245. 



Ornismya temmincki^ Less., Ois. Mou., 182g, p. iio. 



Mellisucra melanoleuca Gray, Gen. Birds, vol. i., p. 112. 



Heliomaster mesoleucus, Gould, Mon. Troch., vol. iv., p. 262. 



Ornithomya mesoleucus^ Bon., Rev. and Mag. ZooL, 1854, 

 p. 251. 



Calothorax mesoleucus, Burm., Th. Bras., 1856, vol. ii., p. 



339- 



Stripe-breasted Star-throat, Gould, Mon. Troch., voL iv., 

 p. 262. 



