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on Mont de la Saxe occurred dwarfed alpine forms of many- 

 other species, pale and deficient in pigment, no doubt the 

 result of the sparse food and the difficulties of existence at a 

 high altitude. At Aix, in one restricted locality, he saw 

 specimens of Nenieobhis Liicina, L., Colias ednsa, Fb., C. hyale, 

 L., and Acidalia ochrata, Scop. It was interesting to note 

 the predominant species of the same genus at different alti- 

 tudes, for instance, the genus Colias : at very low levels C. 

 edusa, Fab., predominated, up to the pine region C. hyale, 

 L., prevailed, throughout the pine zone C. pliiconwne, Esp., 

 was most conspicuous, whilst above the pines C. palcsno, L., 

 outnumbered the others. The Lyccenidce were seen every- 

 where, but if specimens were wanted they could best be 

 selected from the countless numbers which drank the moisture 

 at the manure heaps attached to every chalet. Lyccena arion, 

 L., and L. semiargiis, Rott. {acis, Schiff.) were only found 

 locally but in fine condition. The Hipparchias were simply 

 magnificent, and only comparable in their flight to Apatura 

 uHs, L., most of them being shot with purple. The Hesperidce 

 were by no means behind the other families in numbers. 

 Nisoniades tages, L., was seen apparently just emerged, while 

 at an elevation of 5,000 feet, Hesperia tJiainnas, Hufn., II. 

 sylvanus, Esp., and H. lineola, Ochs., were flying together. 

 It was remarkable that the last species was in our own 

 country confined to districts scarcely elevated above the sea 

 level. In a i&w places near Cogne the willows were almost 

 denuded of leaves from the attacks of the larvae of Vanessa 

 antiopa, L. On one mountain slope near Courmayeur in a 

 particularly favourable locality he saw no less than seven 

 species of Zyg<2nida^ flying together, and took especial care 

 in observing whether the species crossed with each other, but 

 although he noticed many pairs in cop., yet in every instance 

 he saw these closely allied species only pairing with their 

 own species. ZygcEua exulans, Hoch., was common in the 

 Lauzon and Grauson valleys, which are parts of a wild district 

 where ibex and chamois are preserved by the King of Italy. 

 There, flying together, were some bright streaked forms with 

 pale nervures, and the form which some entomologists thought 

 peculiar to our Scotch mountains. Of Setina irrorella, 

 Clerck., he should think he saw all possible variations from 

 specimens with the normal number of spots, through the IVI 

 form, to forms with black lines extending from the base to 

 the outer margin of the wing, and all intermediate variations. 

 He was very familiar with the pygmcEola form of Lithosia 

 liitarella, L., at Deal, but the golden tint of the type form 



