TROCHILIDAE 



433 



green above and greyish below, with a blue nape and white 

 rump-bar. Chlorostilhon, ranging from Mexico to Argentina, 

 possesses some dozen green 

 species with blue or purplish 

 tails, which are forJced or 

 rounded ; Panychlora of 

 Colombia and Venezuela is 

 similar ; Sporadinus, differ- 

 ing in its bronzy-black rec- 

 trices, inhabits J'lorida, the 

 Bahamas, and the greater 

 Antilles. InAitliuruspolyt- 

 vnis, peculiar to Jamaica, 

 the two tail-feathers next 

 to the outer pair are im- 

 mensely elongated, and, after 

 crossing one another, bend 

 outwards in a curve; the 

 lateral rectrices are bluish- 

 black, as is the head with 

 its divided crest ; all the 

 other parts being luminous 

 green, and the bill red 

 with black tip. The female 

 is chiefly green above and 

 white below, with brownish 

 crown. The two species of 

 Microchera of Panama, Costa 

 Kica, and Nicaragua, change with the light from coppery-red to 

 black, and have a greenish throat, a white crown, and a partly white 

 tail, except the median feathers. The hen is green above and 

 white below. La mpornis, with about ten species, ranges from 

 South Mexico and the West Indies to Brazil. L. violicaitda, the 

 South American " Mango," is green with velvety black abdomen 

 and throat, the latter being edged with blue ; the lateral rectrices 

 are violet. Avocettula recurvirostris of Guiana, with its golden 

 green coloration, emerald breast, and tail fiery red beneath in the 

 male, has an upturned tip to the bill, recalling that of the 

 Avocet. The female is chiefly white below. Utdampis holo- 

 sericeus, extending from Barbados to St. Thomas, is golden-green, 

 VOL. IX 2 1' 



Fig. 90. — Long-tailed Humming-bird. 

 Aithurus pol^/tmus. x^. 



