igi8. CATALOGUE OF BIRDS OF THE AMERICAS CORY. 217 



Genus ELVIRA Mulsant and Verreaux. 



Elvira Mulsant and Verreaux, Classif. Trochil., 1865, p. 32 (Type Trochilus 

 chionura Gould). 



*Elvira chionura (Gould). WHITE-TAILED EMERALD. 



Trochilus (Thaumatius) chionura GOULD, Proc. Zool. Soc. Lond., 1850, p. 162 



(David, Chiriqui, Panama). 



Thaumatius chionurus GOULD, Mon. Trochil., V, 1852, pi. 300. 

 Elvira chionura SAL VIM, Cat. Bds. Brit. Mus., XVI, 1892, p. 74; RIDGWAY, Bull. 



U. S. Nat. Mus., No. 50, V, 1911, p. 403. 



Range: Western Panama and southwestern Costa Rica. 

 3: Panama (Veragua) 2; Costa Rica i. 



*Elvira cupreiceps (Lawrence). COPPERY HEADED EMERALD. 



Eupherusa cupreiceps LAWRENCE, Ann. Lye. Nat. Hist., N. Y., VIII, 1867, p. 348 



(Barranca, Costa Rica). 

 Elvira cupreiceps GOULD. Suppl. Trochil., 1880, pi. 53; SALVIN, Cat. Bds. Brit. 



Mus., XVI, 1892, p. 75; RIDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 1911, 



p. 404. 



Range: Costa Rica. 

 3 : Costa Rica. 



Genus CHALYBURA Reichenbach. 



Chalybura Reichenbach, Aufz. der Colib., 1854, p. 10 (Type Trochilus buffoni 

 Lesson). 



*Chalybura buffonii buffonii (Lesson). BUFFON'S PLUMETEER. 



Trochilus buffonii LESSON, Hist. Nat. Trochil., 1831, p. 31, pi. 5 ("Brasil" = 



Bogota region, Colombia). 

 Hypuroptila buffoni GOULD, Mon. Trochil., II, 1854, pi. 89; SALVIN, Cat. Bds. 



Brit. Mus., XVI, 1892, p. 87. 

 Chalybura buffoni ELLIOT, Syn. Trochil., 1879, p. 45; SIMON and DELMAS, Orais, 



1901, p. 222; HARTERT and HARTERT, Nov. Zool., I, 1894, p. 45, in key. 

 Chalybura buffonii RIDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 1911, p. 388. 

 , Chalybura buffoni buffoni CHAPMAN, Bull. Am. Mus. N. H., XXXVI, 1917, p. 293 



(Peque; Salencio; San Augustin, etc., crit.). 



Range: Colombia (Pacific coast to eastern Andes). 

 2: "Colombia." 



*Chalybura buffonii aeneicauda (Lawrence) .' VENEZUELAN PLUMETEER. 

 Chalybura aeneicauda LAWRENCE, Proc. Acad. Nat. Sci., Phila., XVII, 1865, 

 P- 38 (Venezuela). 



Chalybura buffonii aeneicauda LAWRENCE: Distinguished from C. b. buffonii 

 (LESSON) of Bogota region by the bronze-green or reddish-bronze middle rectrices 

 (not blackish) and the rest of the rectrices bordered with greenish bronze. 



