74 TROCniLT. 



j. (S fid- ; ^<'- $ Volcau de Cliiriqui {Arci). Salvin Godman Coll. 



ad. sk. 



/. c? juv. sk. Castillo, Pauama {Arcc). Salvin-Godman Coll. "I 



m. 5 iid. sk. Calovevora, Pauama (Arce). Salvin-Godraan Coll. J 



(Types of the species.) 



w. c? jiiv- «k. Veraguas (Arce). Sclater Coll. 



3. Eupherusa poliocerca. 



Eupherusa poliocerca, Elliot, Ann. ^ Mar/. N. H. 1871, p. 266; 

 Sj/n. Troch. p. 212 ; de Oca, La Nat. iii. p. 302. pi. — ; Muls. Hist. 

 Nat. Ois. -Munches, i. p. 271, pi. 24; Eudes-Desl. Ann. Mus. Caen, 

 i. p. 332; Gould, SuppL Troch. pi. 65 (April 1881). 



Euphrerusa poliocerca, Muls. Ann. Soc. Linn. L/yon, xxii. p. 205. 



Adult male. Very similar to that of^". ea7i)masofar as regards the 

 colour of the body and wings, the central rectrices are paler bronze- 

 green and the four laterals on either side are white at the base, gradu- 

 ally shading into purple-grey towards the tip and outer edge of the 

 outer web. 



Female unknown. 



Ifah. South-western Mexico. 



a. cJ ad. sk. Putla, W. Mexico {Mhouch). Gould Coll. (A 



typical specimen.) 



b, c. (S ad. sk. Omilteme, Sierra Madre del Salvin-Godman Coll. 



Sur, Mexico, July (Mrs. H. 

 H. Smifh). 



17. ELVIRA. 



Type. 

 Leucochloris (Elvira), Mtds, Sf Verr. Classif. Troch. 



p. 32 (1865) E. chionura. 



Elvira, Muls. Hist. Nat. Ois.-Mouches, i. p. 266. 



Jiange. Costa llica and Panama. 



Key to the Sjjecies. 



a. Bill straigliter ; crown grass-green ; submedian pair 



of rectrices not marked with white chionura, p. 74. 



b. Bill more curved ; crown bronzy green ; submedian 



pair of rectrices marked with white mpreiceps, p. 75. 



1. Elvira chionura. 



Trochilus (Thaumatias) chionura, Goidd, P. Z. S. 1850, p. 162. 

 Thaumatias chiouurus, Gould, Man. Troch. v. pi. 300 (May 1852) ; 



id. Intr. Troch. p. 153 ; Lawr. Ann. Lye. N. Y. viii. p. 349 ; Elliot, 



Ibis, 1878, p. 48. 



