HETEROCERA OF SI Kill M AND BHUTAN. 409 



112. A. pagana, Fabr. 

 Sikhim. I do not know this species. It is said to differ from A. 

 Ulineata in the absence of the black patch at the base of the hinclwing, 

 and the black streak on the underside of the fore wing-. Sir Georo-e 

 Hampson, although separating these three latter species, remarks that 

 they may all be varieties of one species. 



Subfamily Ch^erocampin.e. 



Genus Acosmeryx, Boisd. 



115. A. ancea, Cram. 



Sikhim and Bhutan, 2,000 feet. The form ancea occurs in August, 

 A. sericea in June and August, A. cinerea in March, and A. pseudonaga 

 in June, July and September. My specimens of A. ancea and A. cinerea 

 have the outer margin of the forewing crenulate throughout, while that 

 of A, sericea and A. pseudonaga are not so. All my specimens of J. 

 pseudonaga are females. All four forms seem very constant, but I can 

 only judge by Sikhim specimens. I should be inclined to think that 

 there are more than one species (probably two). Mr. Elwes says that 

 his specimens fall into four if not five groups, and thinks that if they 

 are united, A. naga should be also included. I consider, however, that 

 A. naga shows more definite characters than any of the forms placed 

 by Hampson under A. ancea. 



116. A. naga, Moore. 



Sikhim, 3,000 feet. A common species and not apparently vari- 

 able. I have had over a hundred specimens brought to me which 

 show no variation. It is distinguished from A. ancea chiefly by the 

 postmedial streak being more oblique, and reaching to the sub- 

 marginal pale line which is well defined, whitish and straight from 

 vein 7 to the outer angle. 



Genus Ampelophaga, Bremer and Grey. 

 117. A. rubiginosaj Bremer and Grey. 

 Sikhim, July. I have two specimens of what I believe to be this 

 species ; the markings on the forewing are very distinct. The thorax 

 abdomen and forewing are purplish-brown ; the first two with a pale 

 dorsal line ; the last with subbasal, antemedial, medial and postmedial 

 parallel, oblique, brown bands, the medial being broad ; a brown mark 

 on the disco-celiulars, and a triangular patch at the apex. Hindwing 



