BIRDS OF NORTH AND MIDDLE AMERICA. 575 



Heliodoxa jacula henryi Bangs, Proc. New Engl. Zool. Club, iii, Jan. 30, 1902, 

 30 (Boquete and Volcdn de Chiriqui, Panamd., 4,000-7,500 ft.). — Ober- 

 HOLSER, Proc. U. S. Nat. Mus., xxiv, no. 1258, Jan., 1902, 324, in text (Costa 

 Rica). — C.\RRiKER, Ann. Carnegie Mus., vi, 1910, 543 (Caribbean slope, 

 1,000-4,000 ft., San Jose Valley, and Dota Mts., Costa Rica).— Ferry, Pub. 

 146, Field Mus. N. H., orn. ser., i, no. 6, 1910, 264 (Coliblanco, Costa Rica). 



[IMiocIoxa] henryi Sharps, Hand-list, iii, 1900, 124. 



Heliodoxa henrici Boucaru, Gen. Hum. Birds, 1895, 287 (Navarro de Cartago and 

 Volcdn de Irazii; Verdgua). 



(?) Heliodoxa bcrlepschi Boucard, The Humming Bird, ii, no. 9, Sept., 1892, 75 

 (Verdgua, Panamd; coll. A. Boucard). 



Genus FLORISUGA Bonaparte. 



Florisuga Bonaparte, Consj). Av., i. 1S5(), 73. (Type, Trochilus mellivoriis 

 Linnaeus.) 



Rather large Trocliilidas (length about 95-110 mm.) with appar- 

 ently twelve rectrices (the longer upper tail-coverts so elongated 

 and specialized as to simulate the middle rectrices), tail equal to or 

 longer than combined length of head and bill, emarginate, with 

 rectrices broad, firm, and (at least in adult male) nearly truncated 

 at tip, tarsi densely clothed with rather long feathers (especially 

 behind), and abdomen white. 



Bill a little longer than head, i-ather stout, straiglit, nearly terete; 

 culmen rounded except basaliy, where narrowly ridged; tomia 

 smooth; maxilla and mandible each with a rather indistinct narrow 

 median lateral groove. Nostril narrow, slit-like, overhung by a 

 broad, tumid, almost wholly feathered operculum, only the edge of 

 which is exposed. Tarsus wholly feathered, the feathering long on 

 posterior portion; middle and inner toes about equal in length, the 

 outer toe slightly shorter; hallux slightly shorter than outer toe; 

 all the toes small and weak, mth claws relatively small. Wing about 

 four tunes as long as exposed cidmen, tlie outermost primary longest. 

 Tail a little more than lialf (female) as long as wing to nearly three- 

 fifths as long (adult male), emarginate, the rectrices firm, very 

 broad, broadly rounded or (in adult male) nearly truncated at tip; 

 the rectrices apparently 12 in number (at least in adult male) through 

 specialization of the two longest upper coverts, which are as long as 

 and differently colored from the middle rectrices. 



Coloration. — Adult male with head and neck metallic violet-blue, 

 back, scapulars, rump, and upper tail-coverts metallic green; breast, 

 abdomen, flanks, under tail-coverts, and tail (including middle 

 rectrices) white, the latter narrowly tipped with black; a white line 

 across hhidneck. Adult female and young with throat, chest, sides, 

 and under tail-coverts dusky squamatod witli grayish white, pileum 

 green, like back, etc., and tail dark metallic green crossed at or near 



