108 TRAVELS AMONGST THE GEE AT AXDES. 



with any known species, and Mr. Elwes in his additional notes on the genus 

 Colias (Trans. Ent. Soc, 1884, p. 12) in his note on these same specimens, 

 was equally unsuccessful. We have little doxiht that of described species it 

 is with Colias leshia that the present insect should be compared, but from it 

 G. alticola may be recognised without much difficulty by the points to which 

 we have already dra'\\ai attention. A still more nearly allied Colias is found 

 in Bolivia, where the late Mr. Buckley took several examples, and it may at 

 some future time be necessary to describe this latter insect. From C. dimera 

 G. alticola may be readily distinguished by both the wings being of the same 

 tint, while in the former the primaries are orange and the secondaries pale 

 yellow. 



91. Colias leshia (Fabr.). 



Papilio leshia, Fabr., Syst. Ent., p. 477. 



Colias leshia, Elwes, Trans. Ent. Soc, 1884, p. 13. 



ffab. Between Otovalo and Ibarra (8000 feet) ; Otovalo (8600 feet) ; 

 Valley of Chillo (8600-9000 feet); Machachi (10,000 feet). Fifteen ex- 

 amples. 



These specimens agree very fairly, as Mr. Elwes has already pointed out, 

 with others from the Argentine Eepublic ; excepting only that the rosy tint 

 on the upper surface of the wings is almost entirely wanting. The females 

 are all of one type, there being none of the pale form amongst them ; but 

 we have little doubt tliat the insect described by Mr. Kirby as C. dinow 

 (Trans. Ent. Soc, 1881, p. 358) should be referred to this pale form. Mr. 

 Henley Smith has kindly lent us the type of C. dinora, and we have no 

 doubt upon this point. 



92. Colias dimera, Doubl. and Hew., Gen. Diurn. Lep., t. 9, f. 3 ; Elwes, Trans. 



Ent. Soc, 1880, p. 137. 



Colias dimera, var. semperi, Strecker, Lep.-Rhop. and Het., p. 27, t. 4, 

 f. 4. 



Hah. Guallabamba (7200 feet) ; between Otovalo and Ibarra (8000 feet); 

 Otovalo (8500 feet) ; Valley of Chillo (9000 feet) ; Hacienda of Guachala 

 (9217 feet) ; between Caj-ambe and Otovalo (9500 feet) ; IMachachi (10,000 

 feet) ; between Antisanilla and Piiiantura (11,000 feet) ; Pichincha (11- 

 12,000 feet); Cotocachi (12,000 feet); Illiniza (12-13,000 feet). Very 

 numerous examples. 



The females in Mr. Whymper's collection are all of the form described 

 and figured by Mr. Strecker as Colias semperi. 



