CHAP. XIX. BONPLAND'S * YF.LLOW BUTTERFLY: 365 



butterfly in the interior of Ecuador, is found from 7200-11,000 feet, 

 and is sometimes met with so high as 12-13,000 feet. The range 

 in altitude of Colias dimera therefore overlaps that of C. alticola ; 

 but while the former species is distributed nearly everywhere in 

 the interior and occasionally reaches a considerable height, the latter 

 affects great elevations and is not seen on the lower ground. In- 

 asmuch as Colias alticola is well established on the upper slopes of 

 the Great Andes of the Equator, and is the only one ranging up to 

 perpetual snow, it seems probable that it was ' the yellow butter- 

 fly " which was observed by Bonpland on Chimborazo, in 1802 [see 

 p. 114]. So far as is known, it attains a higher elevation than 

 any other Butterfly on either of the two American Continents. 



The recurrence of species whose habits are in-terranean, at 

 great heights, long distances apart, is perhaps more noteworthy 

 than the case which has just been given of a butterfly domiciled 

 in insular situations. The following beetles were found at the 

 localities which are mentioned, and only at those places. 



Approximate 

 Species. Localities. distance apart 



in miles. 



_,,,.._ ^ I Summit of Corazon 15,870 ) 



Colpode8dwpsis,^.t., . .jpi^j^i^^ha . . 14-15,000 f ^^ 



Hac. of Antisana 18,300 ) 



C. tnegacephalus, Bsites . .^ Cayambe . . . 13-14,000 r 36 



Pichincha . . 15,6U0 ) 



^ ,, „ , i Hac. of Antisana 13,300 ) 



C. orthomus, Bates . . . . ^' . i o i c: aaa r ^0 



( Cayambe. . . 13-15,000 ) 



C. steno. Bates ^ ^-hincha . . 14 15 500 ^^ 



Cayambe . . . 15,000 



HelicorrhyncMis vulsus, OlHff \ ,ZHL1^ ' ' ir: la''^!! 



i Chimborazo. .15,800-16,000 f 



94 



nr 7 rMT-ff Pichmcha . . 15,500 ^, 



Macrops ccelorum, Olhn . . i ^, . , .^^.^^ r 94 



^ ' ( Chimborazo . . 16,000 f 



Naupactus parvicoUis, Olli^ . \ ^, . , • • • '» ( ^gQ 



( Chimborazo . . lo,800 ) 



d; . ;; , -, ■ -r,^ CotocacM . .11,000-18,500 



Pelmatellus Andtum, Bates . i r,-, • -, ^ ^^^ 



Chimborazo. . 13-18,300 



140 



