77 



EJ. IVeoridas. 



TIMES OF APPEARANCE. End of June to August. 



HABITAT. Saint-Martin-Vesubie, where it is abun- 

 dant everywhere ; also at the Cascade, in the Borreon 

 valley ; and on the ascent to the Balme de la Frema 

 up to a height of from 7000 to 7500 feet. 



LARVA. I have partially succeeded in rearing the 

 larva, which up to the present has remained undisco- 

 vered, from the egg. The results of my investigations 

 may perhaps prove interesting to entomologists. 



The process was carried out in the manner already 

 described, with very young larvae. 



On September 22 ad of last year, I induced an 

 impregnated female to lay. At this date it commenced 

 by depositing one egg, subsequently laying six or 

 eight daily, till the number reached twenty. Three 

 days later, the ova changed from their normal white 

 colour to pale pink. 



On the 27 th inst. these same turned to a grey 

 colour, the sculptured grooves changing to black. 



Sixteen days from this, on October 12 th ; the first 

 caterpillar emerged, and larvae continued to come 

 out up to the 19 th of the same month. 



The last one perished to my great regret, on 

 December 15 th . 



They were fed on the tenderest shoots of Poa 

 annua, as it is on this plant that the caterpillar of 

 E.Aethiops,to which it bears the closest affinity, lives. 



They were also fed on Panieum sanguinale with 

 but small success. 



These larvae come forth from the top of the egg, 



