288 Field Museum of Natural History — Zoology, Vol. XIII. 



Genus HELIACTIN Boie. 



Heliactin Boie, Isis, 1831, p. 546, part; (Type T. cornutus Wied); Bonaparte, 

 Consp. Av., 1850, p. 85. 



♦Heliactin bilophum (Temminck). Sun Gem. 



Trochilus btlophus Temminck, PI. Col., IV, 1820, pi. i8. Fig. 3 ("Bresil"). 



Trochilus cornutus Wied, Raise N. Bras., II, 1821, p. 190. 



Heliactin cornuta Boie, Isis, 1831, p. 546; Gould, Mon. Trochil., IV, 1856, pi. 



212; Elliot, Syn. Trochil., 1879, p. n6; Salvin, Cat. Bds. Brit. Mus., XVI, 



1892, p. 433. 

 Heliactin bilophum Hartert, Das Tierreich, 1900, p. 187; Hellmayr, Nov. 



Zool., XV, 1908, p. 77, crit. (Goyaz). 

 Range: Brazil. 

 2: "Brazil." 



Genus THAUMASTURA Bonaparte. 

 Thaumastura Bonaparte, Consp. Av., 1, 1850, p. 85 (Type Ornismya cora Lesson). 



*Thaumastura cora cora (Lesson). Cora's Shear-tail. 



Ornismya cora Lesson in Voy. Coquille, I, 1826-28, p. 682, pi. 31, Fig. 4 (Callas, 



Peru). 

 Thaumastura cora Bonaparte, Consp. Av., I, 1850, p. 85; Gould, Mon. Trochil., 

 Ill, 1857, pi. 153; Elliot, Syn. Trochil., 1879, p. 123; Salvin, Cat. Bds. 

 Brit. Mus., XVI, 1892, p. 418; Hartert, Das Tierreich, 1900, p. 188 (?); 

 Simon, Nov. Zool., IX, 1902, p. 183 (Prov. Huamachuco). 



Range: Western Peru, 

 i: Peru (Callao*). 



*Thaumastura cora montana* Cory. Otuzco Shear-tail. 



Thaumastura cora montana Cory, Field Mus. Nat. Hist. Pub., No. 167, Orn. 



Ser. I, No. 7, 1913, p. 286 (Hda. Llagueda, about 20 miles northeast of 



Otuzco, alt. 7000 ft., Peru). 

 Range: Andes of Peru. 

 i: Peru (Hda. Llagueda, northeastern Otuzco), the type. 



Genus RHODOPIS Reichenbach. 



Rhodopis Reichenbach, Aufz. d. Col., (extra heft) I, 1854, p. 12 (Type Rhodopis 

 vesper a Reich. = 0. vesper Lesson). 



*Rhodopis vesper {Lesson). Evening Hummingbird. 



Ornismya vesper Lesson, Hist. Nat. Ois.-Mouches, 1829, pp. 15, 85, pi. 19 

 ("CoradePerou"). 



• Thaumastura cora montana Cory: Similar to T. cora cora, but having the upper 

 parts clear green and not golden green; sides of throat showing a tinge of purple (not 

 blue as in T. cora) ; feathers on the sides of lower breast and flanks largely with green 

 centers; tail similar to that of T. cora, but the dark marking blacker and the black 

 tip showing a subterminal faint tinge of green. Wing, 40 mm.; tail, 95; bill, 13. 



