If it were not for other attractions we would like to concentrate our attention on these beautiful creatures alone. For they fascinate us by the daring of their colours, by their bold designs, by the way in which they blend the colours with one another, and by the extreme delicacy and chasteness of both colour and design. We are reluctant to take the life of a single one of the thousands we see, but yet we are itching, too, to lay hold of one after another as it sails into sight displaying some fresh beauty. We want to handle it as we would a flower, turn it about and examine it from every point of view till not a shade or aspect of its beauty has escaped us. In the presence of these brilliant butterflies we are children once more. We want to have them in our hands and feel that they are in our possession. It is tantalising merely to view them from a distance. We want to enjoy their beauty to the full. These butterflies of Sikkim are such complete strangers to us we do not even know their names. From the "Gazetteer," however, we learn that the most beautiful of them are the papilios, of which alone there are no less than forty-two species. And three of these--namely, the _Teinophalus imperialis_ (which occurs on Tiger Hill above Darjiling) and two ornithopteras, or bird-butterflies--are among the most splendid of all butterflies. The former is green on the upper side with yellow spots on the hind-wing, and the long tails are tipped with yellow. The two bird-butterflies are common in the low valleys from May to October. They are truly magnificent insects, measuring from 6 to 8 inches across. Their fore-wings are wholly of a velvety black and the hind-wing golden yellow scolloped with black. Of the well-known green species of papilio, with longish tails and blue or green spots on the hindwing, there are four species, of which one is European. Some have semi-transparent wings of a lace-like pattern, with long slender tails to the hind-wings, and are of a very elegant shape. A most gorgeously-coloured butterfly is the _Thaumantis diores,_ black with large spots (which cover a great part of both fore and hind wings) of a brilliant metallic, changeable blue. It measures 4 3/4 inches across the outspread wings. It avoids the direct sunlight and dodges about among the scrub growing under the deep shade of tall trees in the hottest and moistest valleys. One of the most lovely butterflies in the world is the _Stichophthalma camadeva,_ which is one of the largest of the Sikkim butterflies, being from 5 to 6 1/2 inches in expanse. It is more soberly coloured on the upper side than the last-named, being chiefly white and brown, but the underside is more beautiful, having a row of five red ocelli with black irides on each wing and other pretty markings.