440 NORTH AMERICAN BIRDS. 



sex ; the feathers very broaci, and rountlod at the ends ; primaries normal, 

 the outer broail to tiie end, and moderately bowed. 



LamporniB.' Bill cylindrical, considerably curved. Wing very long, 

 reaching to, or beyond, the tip of the very broad tail. Size large (wing, 

 2 uO, or more). The male dark-colored (green or black) beneath. Sexes 

 sometimes alike (in West Indies). 



Ba Nasal opercidum entirely uncovered ; base of bill very broad. Female 



with tail-feathers not tipped with white. 



HeUopaedica. Sexes alike in form. First primary longest, much 

 bowed toward end. Tad more than two thirds the wing, nearly square 

 (a little emarginated in the (J, slightly rounded in the 9)) the feathers 

 very broad, rounded at ends. Color, metallic green above, white or 

 rufous glossed with green below ; a conspicuous white post-ocular 

 stripe, and an aurictdar one of black beneath it. ^. Forehead and 

 chin black or metallic blue ; throat rich inctalliu green. 9 • Forehead 

 dull brownish -green ; chin and throat white, glossed with green, or 

 plain ochraeeous ; tail plain bluish-black or purplish-rufous, the middle 

 feathers more or lofs green. 



Thaumatias. Sexes alike in form and color. General form of Helio- 

 pccdica, but tail emarginated, instead of rounded. Color nearly uniform 

 green, with or witiiout white throat and abdomen. Tail grayish-dusky, 

 with an obscure subterrainal band of black (with basal three fourths 

 white in T. chionurus). 



Habits. The habits and manners of the whole family of Trocliilidcv- are, in 

 many striking respects, entirely jieculiar to themselves, and without any known 

 correspondence or close resemblance to those of any other kinds of birds, 

 either in America or elsewhere. This i'amily is found exclusively in Amer- 



1 Genus Lampomis, Swains. Chaii. Size large (wing, 2.50) ; tail large, more than half tho 

 wing, the feathers very broad ; usually a little rounded, sometimes slightly emarginated (as iu 

 L. mango, L. virijinnUH, and L. aunikntns). Bill cylindiieal, considerably curved, its vertical 

 thiekness least at about the middle. Nasal opercula nearly covered by tho frontal feathers ; 

 tarsi naki'il. Wing very long, reaching to or beyond the tip of the tail ; first i)rimary longest, 

 only slightly l)owed, and not atteiuiated at tip ; inner primaries normal. 



The sjiecies of this genus belong ehielly to the West India Islands and to Tropical America, — 

 principally on the Atlantic coast. They are all of more than the average size, and distinguished 

 by broad tail-feathers, and rather dull, though handsome colors. In L. porphyrurius the sexes 

 ai-e alike in color. The following .si)ecies has been accredited to North America, but probably 

 upon erroiK'ous data, since it belongs to northern South America, not even being an inhabitant 

 ol' any of the West India Islands, except Trinidad. Still it is possible that, as alleged for Thnii- 

 iiiiiliiiK Umicci (see pag(^ 1064), it may have wandered far from its usual habitat, and have reacliecl 

 Fhuiila, as stated by Mr. Audubon. 



Liimjmniis mango, (L.) Swains. — Tlie Mango Hummer. Trochilm mango, L. S. N. I, 191. 

 — Gmei. S. N. 1. 491. — Attn. Orn. Biog. II, 1834, 486 ; pi. 184. — In. Birds Am. IV, 1842, 

 186, pi. ccli. Lnmpnniis mango, Sw. ZoiJl. .lourn. HI, 358. — BAiitn, Birds N. Am. 1858, 130. 

 Si'. Chaii. — Ma/i: : Above dee)) golden green ; b(!neath opaqut! velvety-black medially, from 

 the bill to the anal region, separated from the lateral and superior green by a tint of metallic 

 greenish-blue. Tail richly metallic rufous-purple, the feathers bordered terminally with blue- 

 black ; inteimediiB plain dark bronzy-green. Primaries plain dull dusky. Female. Similar, 

 but white be.neath, except laterally, and with a medial strii)e of black, from the bill to the anus. 

 Wing, 2.00-2.70 ; tail, 1.50-1.70 ; bill, .90. Hab. Northern South America (Brazil, Guiana, 

 Venezuela, New Granada, Panama, and Trinidad) ; accidental in Florida ? ? ? 



