1918. Catalogue of Birds of the Americas — Cory. 303 



Chaetocercus harterti* (Simon). Hartert's Wood Star. 



Polyxemus harterti Simon, Omis, XI, 1901, p. 202 (Ibague, western Colombia). 

 Range: Western Colombia and western Ecuador. 



Genus MICROSTILBON" Todd. 



Microstilhon Todd, Proc. Biol. Soc. Wash., XXVI, 1913, p. 174 (Type Microstil- 

 bon insperatus Todd). 



Microstilbon insperatus" Todd. Sara Wood Star. 



Microstilhon insperatus Todd, Proc. Biol. Soc. Wash., XXVI, 1913, p. 174 

 (Buenavista, Province del Sara, BoUvia). 



Range: Bolivia. 



Genus ATTHIS Reichenbach. 



Atthis Reichenbach, Aufz. d. Colib., 1854, p. 12 (Type Ornismya heloisa Lesson and 

 Delattre). 



*Atthis heloisa heloisa (Lesson and Delattre). Heloise's Humming- 

 bird. 



Ornismya heloisa Lesson and Delattre, Rev. Zool., II, 1839, p. 15 (Jalapa and 

 Coatepec, Vera Cruz, Mexico). 



Selasphorus heloisae Gould, Mon. Trochil., Ill, 1861, pi. 141. 



Atthis heloisae Elliot, Syn. Trochil., 1879, p. 113; Salvin, Cat. Bds. Brit. Mus., 

 XVI, 1892, p. 411, part; Salvin and Godman, Biol. Centr. Am. Aves, II, 

 1892, p. 360, part; Hartert (E. & C), Nov. Zool., I, 1894, p. 64. 



A[tthis] heloisa Hartert, Das Tierreich, 1900, p. 210. 



Atthis heloisa heloisa Ridgway, Bull. U. S. Nat. Mus., No. 50, 1911, p. 592. 



Range : Central and southern Mexico. 

 3: Mexico (Cordaba). 



*Atthis heloisa ellioti (Ridgway). Elliot's Hummingbird. 



Atthis ellioti Ridgway, Proc, U. S. Nat. Mus., I, 1878, p. 9 (Volcan de Fuego, 

 Guatemala) ; Elliot, Syn. Trochil., 1879, p. 14; Salvin, Cat. Bds. Brit. Mus., 

 XVI, 1892, p. 412; Salvin and Godman, Biol. Centr. Am. Aves, II, 1892, 

 p. 361. 



* Chaetocercus harterti (Simon) : Similar to C. berlepschi of eastern Ecuador, but 

 differs in having the throat patch more violet red (similar in color to that in Calliphlox 

 amethystina); outer rectrices longer and more blunt; upper parts of body obscure 

 green, nearly resembling berlepschi. 



^ Genus Microstilbon: Closely allied to Chaetocercus Gray, but tail of male 

 differs in having the two outer rectrices elongated (almost as long as the body) and 

 slightly expandedjatthe tips. 



" Microstilbon insperatus Todd: Above shining green; wings dusky; tail dusky or 

 bronzy violaceus; below grayish; throat paler (whitish) spangled with green, and 

 sides more or less green. Wing, 26; tail, 30.5; culmen, 12.5 mm. 



