90 ETERUSIA TRICOLOR. 



by having the wings narrow and entire, the anterior 

 apical nerve trifurcate, the middle nerve also trifur- 

 cate, the branches nearly straight; under wings 

 rather short, entire, the cell elongated, and the apex 

 emitting nerves which are nearly straight ; antennas 

 of the female slender, very slightly serrated on one 

 side ; tongue spiral, elongated ; palpi short ; abdo- 

 men provided with a small exserted terebra. The 

 species figured expands two inches eight lines. 

 Head dark violet, antennae black; anterior wings 

 greenish, marked with several white spots; the 

 hinder pair orange at the base, the exterior half 

 black, passing into violet towards the apex, and 

 spotted with white. The thorax is velvet black, 

 tinged before and behind with violet. Abdomen 

 orange, the first or basal segment violet. Under side 

 of the body violet-blue, the segments of the abdo- 

 men alternately variegated with white and black. 



This insect is a native of Assam. " It appears," 

 says Mr. Hope, in whose extensive collection speci- 

 mens are preserved, " to be a nondescript, and is 

 one of the most beautiful in colouring of my ac- 

 quaintance; it is probably one of the genera of a 

 family peculiar to the East Indies. Little is known 

 of the oriental Lepidoptera, except those described 

 in the Annulosa Javanica of Dr. Horsfield, so much 

 so that I hesitate in hazarding an opinion respecting 

 them. It is almost impossible to describe the beau- 

 tiful colouring of this lovely insect ; the dye of the 

 under wings is of a rich mazarine blue, which 

 passes insensibly into violet and black, In affinity 



