242 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XL 



Family SATURNIIM. 

 Genus Actias, Leach. 



1. A. selene 7 Hubn. 



Sikhim and Bhutan ; occurs as high as 6,000 feet. My specimens 

 were obtained in March and April. The larva is yellowish-green, 

 with paired dorsal and lateral tubercles, except on the first and last 

 somites ; each tubercle bearing a few long hairs and several short 

 ones ; anal claspers with a rufous triangular patch on the outside. 

 Its food-plant is the wild cherry. The cocoon is brownish and incon- 

 spicuous, being generally enveloped in a leaf. 



2. A. mcenasj Doubl. 



Sikhim and Bhutan ; occurs up to 4,000 feet in March, April, and 

 May. The larva, when first hatched, is orange-coloured, covered with 

 rather long hairs, and with the medial segments black. I have no 

 record of the full-grown larva. Its food-plant is Schima wallichii. 

 The cocoon is less closely woven than that of A. selene. 

 Genus Attacus, Linn. 

 4. A. atlas, Linn. 



Sikhim and Bhutan, up to 3,000 feet in May. The cocoons are 

 found commonly on the leaves of different trees, especially in the 

 forests around Badamtam and Singla in the Rungeet Valley. 

 5. A. edwardsi. White. 



Sikhim and Bhutan ; 6,000 to 7,000 feet in June. I took a full- 

 grown larva below Darjeeling in 1889 feeding on Leueosceptrum canum. 

 It was apple-green, with a subdorsal row of long pale blue tubercles ; 

 those on the second and third somites speckled with black ; two lateral 

 rows of short blue tubercles ; claspers with a reddish patch on the 

 side. This larva, as well as that of A. atlas and A. cynthia, is covered 

 with a chalky secretion, which is easily removeable. Cocoon is formed 

 in a leaf, and the silk is much darker than that of A, atlas. 

 6. A. cynthia, Drury. 



Sikhim and Bhutan up to 6,000 feet. This is a very common species 

 throughout the year, especially at from about 3,000 to 4,000 feet. The 

 larvae 1 have often taken at Badamtam (Rungeet Valley) ; they are green, 

 covered thickly with the chalky secretion which makes them appear 

 almost pure white ; there are dorsal, subdorsal, and lateral rows of rather 

 short spines tipped with blue and orange. The cocoon is formed in a leaf. 



