16 BUTTERFLIES OF THE RIVIERA 



subsequent occasions, I secured others. The larva 

 emerged in nine days. 



LARVA. On Cardamine pratense, C. impatiens, 

 Turritis glabra, and other Cruciferae, in July ; 

 hybernating in the chrysalis state. 



VARIETIES. Specimens are to be seen from time to 

 time, in which the orange blotch occurs on only one 

 of the f.-w., or only on the upper-side or under-side. 



Abnormities also occur having the whole ground 

 colour canary-yellow. 



A. Euplienoides. 



TIMES OF APPEARANCE. End of March to May. 



It has been taken as early as March 22 nd and 28 th , 

 in Nice. 



The females, as is usual with most butterflies, 

 emerge from their chrysalids about a fortnight later 

 than the males ; and are somewhat rare. 



HABITAT. Vallon Obscur, Mt. Vinaigrier and 

 gorge of Saint-Andre, Nice ; rarer at Cannes ; also at 

 Saint-Martin-Vesubie, where it is never very common. 



It is interesting to note that it is to be taken even 

 as high as the Boreon bridge, over the torrent near 

 Saint-Martin. The specimens from the alpine parts 

 strangely enough appear larger than those from 

 the coast. 



OVUM. The ova are shaped like those of A. Bella; 

 in colour pale yellow. They are deposited in a vertical 

 position on the young buds of the food plant, being 

 found in May. 



LARVA. On Biscutella didyma, B. Burseri and 

 other kinds of Cruciferae, in June and July, according 

 to the altitude. 



