128 



W. Dolierty — Notes on Assam Butterflies. [No, 1, 



Hill Tracts, at Sandoway and Basseiu iu Burma, in Tenasserim, 

 and in the Malay Peninsula, Pithecops is the rarer form. In Java it is 

 Neopithecops that is rare, another instance of its close faunal resem- 

 blance to the Himalayas. In the Celebes, I did not observe any Neo- 

 pithecops, but a large protected Pithecops (P. phcenix, Rober) is vez-y 

 common and conspicuous. On the other hand, Neopithecops seems to 

 occur alone in Malabar (where I found it as far north as the Gersapa 

 Falls in North Kanara), and Ceylon, and also, so far as my experience 

 goes, in the islands of Lombok, Samba wa, and Sumba east of Java. 



The genera differ m many important points. As regards prohen- 

 sores, the clasp (harpago) of Neopithecops, seen from the side, is simply 

 clavate at the tip, while that of Pithecops is long and slender and ends 

 in two opposing points like a pair of pincers. As to the egg, in that 

 of Neopithecops the raised lines form triangles laterally, in that of Pithe- 

 cops quadrangles. Both genera are apparently more or less protected, 

 and are mimicked by certain rare species of Logania (Gerydinoi) and 

 Cyaniris (Lyccenince). 



Sub-family PoRiTiiNiE. 

 Masbaoa haeteetii, n. sp., PI. X, Fig. 1, (?. Male, aftoiie black, 

 markings in some lights lustrous sea-green, in others more or less 

 bluish, the tips of the scales being blue and slightly bent down- 

 wards. Forewing with six submarginal spots, the upper five small 

 and subequal, arranged in a linear series, the lower slightly nearer the 

 base, oblong and much larger than the others ; a slender oblique fascia 

 beyond the cell, divided by the radials into three parts, the lowest 

 longest ; a stripe along the lower side of the median vein, extending to 

 the base, a small part of it lying beyond the lower median branch, 

 which divides it ; beyond this a wider transverse disoal spot, divided by 

 the middle median into two portions outwardly dehiscent ; another 

 stripe along the hind margin almost from tho base, the outer end in- 

 clined upwards, with a minute spot above its termination, separated 

 from it by the internal vein. Eindiuing with a largo pale costal area, 

 a tuft of long hairs, appressed in the direction of the apex, on a gland 

 which forms a raised elliptical line on the underside above the origin 

 of the first subcostal vein; submarginal spots four, a diffused one ex- 

 tending' from the median halfway to the submedian vein, a large obliquely- 

 semicircular one dark in the middle, in the lower median space, a narrow 

 crescent close to the marginal black line iu the upper median space, 

 and a small difiused spot in the next space, partly united with the upper 

 discal spot. Discal spots three, one occupying the submedian space 

 from its base, constricted in the middle, the clavate end occupying 



