328 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1892. 



sexes (but move especially tlie female) differ in having the black area 

 more extensive on the upperside of the forewing, and on both wings 

 on the underside. It differs from P. diomsius, var. steirema, Druce,* 

 in having in both sexes the white area of the hindwing on the 

 upperside very much larger, extending to the third median nervule, 

 while in P. steirema it reaches to the second subcostal nervule only ; 

 P. hassaris also lacks the small black spots on the costal margin of the 

 forewing on the underside found in both P. dionisius and P. steirema. 



In Pithecops hylax, Fabricius, the first subcostal nervule is entirely 

 anastomosed with the costal nervure except a short portion of the 

 base which is free. In the male of P. hassaris the first subcostal 

 nervule appears to cut straight through the costal nervure instead of 

 anastomosing with it, while in the female it anastomoses for a short 

 distance, and then again becomes free and reaches the costa. Herr 

 Rober's genus Eupsychellus proposed for L. dionisius should I think 

 fall before Pithecops. 



Described from five male and one female specimen kindly 

 presented to me by Herr Georg Semper of Altona. 



5. CYANIRIS CEYX, n. sp., PL H, Figs. 6, ^ ; 7, $ . 



Habitat : Java. 



Expanse : $ , 9 , 1*2 inches. 



DESCRiPTioisr : Male. Upperside, both icings somewhat pale blue- 

 Poreioing with the costa very narrowly, the outer margin more 

 widely but decreasingly towards the anal angle black ; an obscure 

 irrotated patch of white on the disc between the median nervules. 

 Cilia at the apex black, becoming white at the anal angle. JSindiving 

 with the outer two-thirds white, glossed with blue in some lights, 

 crossed by the dark veins ; a series of obscure small round dusky 

 spots on the outer margin, one in each interspace. Cilia pure white, 

 bounded within by a very fine black thread. Underside, both wings 

 white, of a slightly bluish shade. Forewing with a narrow dusky 

 line defining the disco-cellular nervules ; a curved discal series of 

 five spots, and a similar number of smaller rounded marginal spots. 



* Pithecops steireira, Druce, Ann. and Mag. of Nat. Hist., sixth series, vol. v, p. 25, 

 n. 3 (1890); p. dionisiios, var. steirema, id., Proc. Zool. Soc. Lond., 1891, p. 358, 

 pi. xxxi, fig. Ji, from the Solomon Isles {Bruce). 



