178 



PROCEEDINGS OF THE NATIONAL MUSEUM. vol. x.xvnr. 



6. RHINOCYPHA FENESTRELLA Rambur. 



Material studied: Siaiu, collection r.S.N.^NL. Troiio-, Lower Siain, 

 13 males, 2 females; Khow Sai Dow iMoiintain, 1,000 feet, Trong, 

 Lower Siam. .lamuuy-February, 1899, G males, 5 females. Burma, 



Fig. 9. — Wings of male rhinocypha fenestrella from Bvrma. 



Fig. 10.— Wings of male rhixocypha fenestrella fko.h Bi it>L\. 



collection P. A. N. S., 9 males; collection Williamson. l!> males, -t 

 females. 



In this species the vitreous artni on the front wings of males behind 

 the opaque area occupies from one-tifth to nearly one-half the wing 

 width. In specimens from Burma and Siam one-tifth to one-third is 



