BUTTERFLIES FROM THE CHIN BILLS. 639 



is rather a striking variety ; it is not, however, quite clear why 

 this particular form should be taken as the female of typical 

 Uugii, as there is a common form of the female marked pre- 

 cisely as in typical male Uugii. I further obtained two males 

 and two females which cannot be assigned to any of the above 

 forms : — one of the females is nearest to the form madellandii, with 

 which it agrees in the obsolescence of the blue gloss and also in the 

 markings, except that the cell-spot is wanting (according to the 

 description this spot is present in both sexes, but according to the 

 figures is absent in the male and present in the female) ; the remaining 

 three specimens belong to forms which have not been named and are 

 all remarkable for the obsolescence of the spots on the upperside : the 

 female has five apical submarginal spots and three discal ones on the 

 forewing, and three apical submarginal spots on the hiudwing, all the 

 marginal spots on both wings being wanting ; in both the males the 

 upperside of the hindwing is absolutely without markings, while on 

 the forewing in one specimen there are four very small subapical spots 

 and two discal ones, and in the other only the four subapical ones ; 

 these two males, from being almost without spots, have a very distinct 

 appearance. The forms regalis and illustris were not met with though 

 they occur a little further south. With reference to the former, it is 

 worth noting that Colonel Swinhoe in a recent paper on the Butterflies 

 of the Khasi Hills, while sinking regalis^ Moore, as a synonym oi Uugii 

 redescribes it again as '"''Var. hamiltoni^'' and evidently considers the 

 latter as very nearly equal to a distinct species as he gives it a separate 

 number in his list. No form of the local race crassa was met with, 

 and only rare stragglers of this race would occur as far north as the 

 Upper Chindwin. 



13. EuPLCEA (Isamia) eogenhoferii, Felder. 

 A single male of the typical form with both rows of spots obsoles- 

 cent on the upperside of the hindwing was taken at the foot of the 

 hills in May. 



14.. EuPLCEA (Stictoploea) hareisii, Felder. 

 A single very battered male of the form hinotata, was taken at 

 Kalewa in May. 



I wish here to call attention to some very misleading remarks 

 made by Colonel Swinhoe in his paper on the Khasi Bill 



