36 SYNOPSIS OF THE HUMMING-BIRDS. 



3. Oreotrochilus estellae. 



Trochilus estella, D'Orb and LaFres., Syn. Av., no. 31, p. 32 (1838). 



Orthorkynchus estella, D'Okb, Voy. Amer. Meriil., t. iv {1835-44), p. 376, pL 61, fig. 1. 



Trochilus cicilia; Less., Rev. Zool. (1839), p. 43. 



Oreotrochilus estellce. Gould, Mon. Trocli., vol. ii, pi. 70.— Id., Intr. Troch., octavo cJ., p. G3. — Bon., Consp. 



Gen. Av., vol. i, p. 76. — Id., Rev. and Mag. Zool. (1854), p. 250.— Gray, Gen. Birds, vol. i, p. 104, sp. 1. 



—Reich., Aufz. der Colib., p. 15.— Id., Troch. Enura., p. 12.— Elliot, Ibis (1877), p. 142. 

 Oroirochilus estellce, Cab. and Hein., Mus. Hein. Th., iii, p. 16. — Muls., Hist. Nat. Ois. Mouch., torn, ii, p. 169. 



Ilab. Bolivia, Peru. 



Mah. Head and upper parts olive-brown, passing to coppery-green on the upper 

 tail coverts. Throat brilliant grass-green, bordered beneath bj' a line of black. 

 Flanks olive-brown ; breast and abdomen white, in the centre of the latter a line 

 of deep chestnut. Under tail coverts olive-brown. Median rectrices dark green 

 with bronze reflections ; remainder white, bordered on the outer webs with black. 

 Wings purplish-brown. Bill black. Total length, 5 in. Wing, 2| in. Tail, 2j in. 

 Culmen, f in. 



Femah differs from the male in having the throat white, spotted with brown ; 

 under parts rufous-brown ; and the lateral tail feathers white, crossed with a band 

 of green in the centre. Dimensions the same as those of the male. 



4. Oreotrochilus leucopleurus. 



Oreotrochilus leucopleurus, Gould, P. Z. S. (1847), p. 10. — Id., Mon. Troch., vol. ii, pi. 71. — Id., Intr. Troch. 



octavo od., p. 63. — Gray, Gen. Birds, vol. i, p. 104, sp. 2. — Reich., Aufz. der Colib., p. 15 (1853). — Id., 



Troch. Knnni., p. 12. — Bon., Consp. Gen. Av., vol. i, p. 76 (1850). 

 Orotrochilus leucopleurus, Cab. and Hein., Mus. Hein. Th., iii, p. 16. — Muls., Hist. Nat. Ois. Mouch., torn, ii, 



p. 172. 



Hah. Chili. 



3faJe. This species diff'ers from the estelJm mainly by having the centre of the 

 abdomen bluish-black instead of chestnut; and perhaps there is less of the blackish- 

 brown margin on the white lateral rectrices. In dimensions the two species are 

 about the same. 



Female. The remarks already made regarding the females oi 2^ir]imr-ha and I'Jiim- 

 horazo may be repeated here; as without a knowledge of the locality the female of 

 the present bird cannot be determined from that of estellce. 



5. Oreotrochilus melanogaster. 



Oreotrochilus melanogaster, Gould, P. Z. S. (1847), p. 10.— Id.. Mon. Troch., vol. ii, pi. 72.— Id., Intr. Troch., 

 octavo ed., p. 64.— Gray, Gen. Birds, vol. i, p. 104.— Bon., Consp. Gen. Av., vol. i, p. 76.— Reich., Aufz. 

 der Colib.. p. 15.— Id., Troch. Enura., p. 12. ' 



Orotrochilus melanogaster, Cab. and Hein., Mus. Hein. Th., iii, p. 15 (note 6).— Muls., Hist. Nat. Ois. Mouch., 

 torn, ii, p. 176. 



Hah. Peru (Maraynioc, Jelski). 



3Iale. Upper parts olive-brown ; throat metallic grass-green ; under parts bluish- 

 black. Upper tail coverts shining green, under coverts olive-brown margined with 



