JOURNAL 



OF THE 



ASIATIC SOCIETY OF BENGAL 



Part II.— NATURAL SCIENCE. 

 No. v.— 1886. 



XXII. — List of the Lepidopterous Insects collected in Tavoy and in Siam 

 during 1884-85 by the Indian Museum Collector under 0. E. Pitman, 

 Esq., C. I. E., Chief Superintendent of Telegraphs. Part II, Rhopa- 

 locera. — %H. J.Elwes, F. Z. S., and Lionel de Nice'ville, F. E. S. 



[Received September lltli ; — Read November 3rd, 1886.] 



(With Plate XX.) 



The collection described in the following pages was sent in the autumn 

 of 1885 by Mr. Wood-Mason, Superintendent of the Indian Museum, 

 Calcutta, to Mr. H. J. Elwes to be worked out. On the latter returning 

 a complete set of the species to the museum, Mr. de Niceville compared 

 it with the collections ;in that institution and completed the paper. 

 The specimens were obtained by the Museum Collector, Moti Ram, be- 

 tween October, 1884, and June, 1885, at the following places : — 



I. Tavoy, where the majority of the species were taken in the 

 month of March, 



II. Ponsekai, 



III. Hills on the Siamese frontier. 



IV. A few specimens were afterwards collected by Mr. James 

 Wallace, Executive Engineer, Public Works Department, from near 

 Sinbyoodine. 



In determining the nomenclature of Lepidoptera from the Indian 

 region, great difficulties are met with, because no one has hitherto com- 

 pared a large series of the forms of wide-ranging dominant genera which 

 inhabit almost every part of it, and which have hitherto been deter- 

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