446 Rev. F. W. Hope on some neiv Insects collected in Assam. 



colouring of my acquaintance : it is probably one of the genera of a family 

 peculiar to the East Indies. Little is known of the Oriental Lepidoptera, ex- 

 cepting those described in the Annulosa Javanica by Dr. Horsfield, so much 

 so that I hesitate in hazarding an opinion respecting them. It is almost im- 

 possible to describe the beautiful 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 the genus is allied to Campylotes of Westwood, described in 

 Professor Royle's work on the Natural History of the Himalayan Mountains. 

 It is allied also to Gymnautocera of Guerin, and to Heleona and Anthomyza of 

 the same author. It is doubtful if the insects composing this family are more 

 allied to the Zygcenidce than the Lithosiadce ; they appear to have been greatly 

 neglected, and it is the more remarkable, as they are certainly some of the 

 most beautiful of the Lepidoptera. 



Zyg^nid.£. Stephens i 



Erasmia*. 



Antennoe c? bipectinatse, pectinibus mediocribus. 



Aloe anteriores oblongse, subovales, integrse, nervis posticis paull6 curvatis, 



cellula discoidali clausa. 

 Aloe posticce subrotundatse, nervis posticis curvatis. 

 Corpus gracile, subcylindricum. 

 Caput parvum, palpis parvis. 

 Lingua spiralis et elongata. 

 Pedes graciles. 



Erasmia pulchella. 

 Tab. XXXI. fig. 5. 



Long. Corp. unc. 1. Expan. alar. 3 unc. & 2 lin. 



Argenteo-viridis ; alis anticis nigris, maculis viridi-coeruleo-argenteo ornatis, 

 fascia irregulari ante medium rufa, maculisque majoribus albis pone me- 

 dium positis. Alee posticae stramineee, basi apiceque nigris, nervis viridi- 

 coerulescentibus. 



• Erasmia, from the Greek fpacrfitoi, amabilis. 



