DIURNI OF CENTRAL AND SOUTHERN FRANCE, AND CORSICA. 77 



10th, to the forest of Compiegne. The Diurni here were similar 

 in species to those of Villera Cotterets, but, amongst others, I 

 captured several examples of Argynnis aclippe var. cleodoxa, and 

 one of Dryas paphia var. valezina. Thecla w-album was abundant 

 on the blossoms of the bramble. 



I was much interested with a (to me) new bait for the Apa- 

 turidae, which M. Brown introduced to my notice, and which, I 

 understand, is commonly used in France ; this is a very strong 

 smelling cheese, known as " marolle." I purchased one of these 

 cheeses, which are not large, and placed portions of it on 

 the road running through the forest where the "emperors" are 

 abundant. Unfortunately, the only day on which I could try it 

 was not a favourable oue, with but little sun, and thus the bait 

 did not have a fair chance ; but it certainly attracted more 

 " emperors " than any of the patches of natural bait lying about, 

 and I believe that, given a good day, it would have proved very 

 successful ; at any rate, though strong smelling, it is certainly 

 not so objectionable in the knapsack as some of the baits used in 

 England. 



I left Villers Cotterets on July 12th, en route for Vizzavona, 

 Corsica, where I arrived on the 14th. 



The butterflies of Corsica— and of Vizzavona and Corte espe- 

 cially, where I stayed whilst in the island — have been so much 

 written up that there is very little that is new to be said about 

 them. Everyone goes at the same time of the year, takes the 

 same species, and takes them in the same places. 



At Vizzavona the usual species were abundant, with the 

 exception of Papilio hospiton, and I had no difficulty in obtaining 

 all I required of them during the ten days I spent there. Of 

 P. hospiton, ten imagines were observed, of which I netted nine ; 

 only four of these were, however, worth retaining. I searched 

 the mountains for many miles round for larvae, and almost 

 missed them, except for two examples, which I found on the first 

 day. Thanks, however, to the kindness of a friend, who gave me 

 a hint of the kind of locality I ought to search, I succeeded, 

 during the last two days of my stay, in obtaining twenty- seven 

 larvae ; they were found upon a very local species of fennel, which 

 I could only discover in three small localities. Unfortunately 

 this plant dries up very quickly, and as the larvae resolutely 

 refused to feed upon every other umbelliferous plant I could find 

 — at least a dozen in number, and including the common fennel 

 {Fceniculum vulgare) — I only succeeded in getting eighteen to 

 pupate, and most of these are very small. 



At Corte, in the beautiful gorges of the Eestonica and the 

 Tavignano, I found the local form of Hipparchia semele var. 

 aristeus abundant, and captured many fine examples of the 

 magnificent Corsican form of that finest of European Argynnids, 

 Dryas pandora. In the Restonica Gorge I obtained half a dozen 



