HETEROCERA OF SIKHIM AND BHUTAN. 247 



larger and feeds on a different tree ; he found it at Darjeeling in 

 Ju\y.—£.J.E,) 



Genus Cricula, Wlk. 

 30. C. trifene strata, Heifer. 

 Sikhim and Bhutan, 2,000 feet, June. The larvae are gregarious, and 

 the cocoons are often in dense masses of hundreds together. (May to 

 August. In May and June, 1891, Mr. Knyvett tells me that the 

 larvae had overrun all the trees at Darjeeling and down to Tukva.r in 

 great numbers. — H. J. E.) 



31. C. multifenestratd) H.-S. 

 Sikhim. I have never received this species. (Common at Jorepokri 

 near Darjeeling at 7,000 feet. — B. J. E.) 



Family BRAHM^ElDiE. 

 Genus Brahma a, Wlk. 

 32. B. wallichii, Gray. 

 Sikhim and Bhutan, 6,000 to 8,000 feet. 



33. B. hearseyij "White. 

 Sikhim and Bhutan, 6,000 to 8,000 feet, May. Both these species 

 do not appear to be uncommon, but I have very few specimens in my 

 collection. 



Family BOMB-YCIDJE. 

 Genus Ocinara, Wlk. 

 36. O. signifera, Wlk. 

 Sikhim and Bhutan up to 4,000 feet, May, August, and Novem- 

 ber. This is a variable species chiefly in the extent of the fuscous 

 markings. 



37. O. apicaliSj Wlk. 



Sikhim, 3,800 feet, July. I have only one specimen which I believe 

 to be referable to this species. The band within the postmedial line 

 is olive ; the black spots are absent except those specks on the veins 

 at the postmedial line ; there is a rather large double ferruginous 

 mark on the inner margin of the hindwing at the termination of the 

 postmedial crenulate band. 



38. O. varians, Wlk. 



Sikhim, 1,800 feet. 1 have three forms of this species taken in the 

 Balasun Valley in March. July, and December. The first is ochreous 

 with a darker patch on the outer margin below the apex ; a dusky 



