332 CHAPTER XLVIL 



Queen of Spain (A. Lathonia), the Bath White (P. 

 Daplidice), the Camberwell ( V. Antiopa). The 

 Black-veined White (A. Cmtcegi) will settle on damp 

 ground in such numbers that you may take a dozen 

 in one stroke of the net. The Fruit-tree Swallow-tail 

 (P. Podalirius) is common everywhere up to nearly 

 3,000 feet. 



In the mountain regions, Alpine and sub-Alpine 

 species fly in swarms ; for instance, A.Amathusia and 

 the semi-transparent P. Apollo. The female of this 

 latter insect is able to emit a buzzing sound. I heard 

 this very distinctly on one occasion : the Apollo when 

 gently transferred from a flower to my hand did not 

 fly away, but continued to stridulate. Darwin found 

 in South America a butterfly of the genus Papilio, 

 which made a clicking sound, audible at a distance of 

 twenty yards. 



Some of the Northern insects are represented by 

 Southern species. For instance, the Glory of Provence 

 (Aurore de Provence) or Southern Orange-tip (A. 

 Euphenoides, Fig. 87) is much commoner round Nice 

 than our A. Cardamines. The White Admiral 

 (L. Sibylla) is absent, and its place is taken 

 by L. Camilla, which lives upon the honeysuckle 

 (Lonieera). The Comma ( V.C. -album) is less 

 frequently met with than the allied V. Enea. Of 

 these we took about a dozen in one afternoon at 

 Vence. It is not easy to understand the Spring 

 brood, Summer brood, and other varieties of this 

 insect. Again, the Brimstone (R. Rhamni) is so 

 rare that I have seen but one taken in five or six 

 years, whereas R. Cleopatra, its representative on the 

 Mediterranean, is one of the commonest insects from 



