388 Wood-Mason & de Niceville — On the BJwpalocerous [No. 4, 



irargin. Cilia cinereous on tlie hindwin^ and at tlie anal angle of the 

 forewing, in front of wliich point they are dark brown. 



Expanse : 1*8 inches. 



Two males, Irangmara, 6th and 29th July. This species agrees in 

 markings almost exactly with the male of Pithauria murdava, Moore, 

 but the large and curiously-formed sexual brand in the male will at once 

 distinguish it. 



234. Pithauria stramineipennis, n. sp., PL XY, Fig. 5, <j . 



c?. Upperside, hoth wings marked precisely as in P. murdava, 

 Moore, but all the setae on the base of the wings clear whity-brown with 

 a touch of yellow on all those in front of the submedian nervure of the 

 forewing, those on the interno-median area of this wing being concolor- 

 ous with the whity-brown down of the hind wing, the costal area of which 

 is above more or less extensively pale brown. In P. murdava, the setae in 

 the hindwing are yellowish-olivaceous, all those of the forewing distinctly 

 yellower ; and the costal area of the hindwing is dark. All the spots 

 and streaks of both sides are no less variable in P. stramineijpennis than 

 they are in P. murdava, so we have not attempted to describe them. 



9 . Differs from male in being larger, in the wings being paler, 

 with the scanty setulose clothing at their bases greyish-fuscous paler 

 than the ground in the hindwing, and in the spots of the forewing 

 being larger, paler, and more angular ; agrees therewith in the costal 

 area of the hindwing being pale brown above. 



Hab. — $ , Sikkim, Bhutan, Upper Assam, and Cachar ; ? , Sikkim. 

 Expanse : ^ , 1-8 to 2*0 ; 2 , 2-1 inches. 



We have long known of the existence of two species of the genus 

 Pithauria occurring in almost equal profusion in Sikkim and Bhutan, 

 and we recently sent a male specimen of each to Mr. Moore to be named 

 in order that we might know for certain to which the term murdava 

 ought properly to be applied. Mr. Moore returned the dark one (which 

 agrees with his figure in the Proc. Zool. Soc. Lond., 1878, pi. xlv, fig. 13) 

 labelled " P. murdava, d ", and the light one, our P. stramineipennis, 

 " P. murdava, 9 ." In describing P. murdava, he does not give the 

 sex of the typical specimen, but his description, like his figure, applies 

 best to the dark form. Mr, Distant appears to have fallen into the 

 same error as Mr. Moore, correctly figuring as the male that which 

 we have all along taken as the male of P. murdava, but describing the 

 present species as its female.* We possess two specimens of the female 

 of P. murdava, which differ from the single one of P. stramineipennis, 



* Pithauria murdava, Distant, Rhop. Malay., p. 378, n. 1, male and female 

 pi. XXXV, fig. 9, male (1886). 



