DISTRIBUTION OF THE RHOPALOCERA. 209 



feed them on, I supplied them with "London pride" and Arahis 

 alpina, the nearest representatives of the saxifrages which the larvae 

 are said to live upon, both plants being plentiful in the Pyrenees ; but 

 they would not touch them, and in consequence all died. The ova are 

 round, somewhat concave at the sides, possessing in this respect a 

 superficial resemblance to a broad bean. They are of a slaty grey 

 colour, and possess a very tough epidermis. The young larvie were 

 very lively, and crawled about with a rapidity more like the caterpillars 

 of certain Bombyces, to which also the ova possess a close resemblance. 

 —P. mnemosijne. Cirque de Gavarnie and Cirque de Troumouse ; 

 single specimens only (5000-5500 ft.). 



PiEBiDffi (nine species). 



Aporia cralmfji. Very abtindant everywhere, especially at Gavarnie, 

 St. Sauveur, and Pierrefitte (1800-55UO ft.). Among the series 

 obtained are some dwarf specimens, produced probably by semi- 

 starvation. 



Pieris rapcE. Scarce, except at Pierrefitte, Gavarnie, and St. 

 Sauveur (1800-5000 ft.). Variable in size. — P. napi. Scarce; Pierre- 

 fitte, St. Sauveur (1800-8000 ft.). At both localities I obtained 

 representatives of the first and second broods. Those of the latter 

 are of the South European type, being very large and white with very 

 pale yellow under sides, the veins being indistinct, in which latter 

 particular similar specimens occur in the Midlands and South of 

 England during very hot summers as occasional aberrations of the 

 second generation. — P. daplidice. One specimen at Gavarnie (5500 ft.). 

 It is intermediate between the type and the var. heliidke. — P. callidke. 

 Port de Gavarnie (6500-7000 It.). Saw several specimens, but did 

 not succeed in capturing any, as their flight is exceedingly swift, 

 making it difiicult to chase them over rocky ground. 



Lcucophasia sinapis. Scarce ; Pierrefitte, St. Sauveur (1800- 

 3000 ft.). — Var. diniensis. One specimen at Pierrefitte (1800 ft.). 



Colias edusa. Scarce ; Pierrefitte, Gavarnie (1800-5500 ft.). — 

 C. phicomone. One specimen at Gavarnie (5500 ft.). (I did not see 

 C. hyale at all in the Pyrenees, but observed many specimens of it 

 when travelling through France by rail.) 



Pihodocera rliamni. Scarce ; Pierrefitte, St. Sauveur, Gavarnie 

 (1800-5500 ft.). 



LYCiENiDffi (nineteen species). 



Theda ilicis. A few specimens, but worn, in the Gorge de Pierre- 

 fitte (2500 ft.). (I saw specimens of another Theda near the Port 

 Napoleon at St. Sauveur, flying about the tops of the trees in the 

 ravine, but was unable to get near enough to identify same.) 



Chrysophamis vinjaurecB. Abundant and generally in good condition 

 at Gavarnie and Heas (5000-6000 ft.). Many of the males possess a 

 black discoidal spot on the anterior wings, but I did not meet with the 

 var. ineigii. — C. hippothoe. Abundant and in tolerably fair condition 

 at Heas and Gavarnie (5000-5500 ft.). The females are very variable 

 as regards size, and they often possess a melanochroic tendency, but 

 I saw nothing in either sex approaching the alpine var. eurybia. — 

 C. dorilis. Common but worn at Gavarnie (5000-6000 ft.). — Var. 



