268 MR. F. MOORE ON LIMNAINA AND EUPLCEINA. [May 1, 



the cell, a small discal spot beyond lower end of the cell, a submar- 

 ginal series of eight spots, the three upper of which are small and 

 slender, the fourth and fifth large and bluntly oval in shape, the 

 three lower smaller and nearly round, a marginal row of small 

 narrow spots, extending to the apex and disposed alternately against 

 the margin and towards the submarginal row. Hind wing with a 

 marginal row of very small dentate spots, and a nearly obsolete 

 upper submarginal row. 



Expanse, J 3g inches. 



Hob. Nias Island, W. coast of Sumatra. In coll. British 

 Museum, 



Approaches nearest to T. biseriata. 



8. Tronga brookei, n. sp. 



Allied to T. hremeri. Comparatively smaller and narrower ; of a 

 paler brown colour and with a violet-blue tint. 



Male. Fore wing with similarly disposed spots, all of which are 

 smaller, the marginal series being very minute, the four lower sub- 

 marginal also very small and the upper ones half the size of those in 

 T. hremeri ; costal and (sometimes two) discal spots also small : hind 

 wing with very minute or scarcely distinguishable marginal dots. 



Female. Paler ; marked as in male, and with an additional spot 

 within the cell. 



Expanse, S 3f, $ 3§ inches. 



Huh. Sarawak, Borneo (Wallace'). In coll. British Museum. 



9. Tronga labuana, n. sp. 



Allied to T. crameri. 



Male. Fore wing with eight similar but comparatively shorter and 

 broader submarginal spots, the sixth and seventh lower spots being 

 larger ; an indistinct marginal lower row of very minute spots : 

 hind wing with two complete series of small spots. 



Female. Fore wing with somewhat larger submarginal and mar- 

 ginal spots, a small costal spot, one within the cell, and one on the 

 disk : hind wing with two rows of spots as in male. 



Expanse 3f inches. 



Hah. Labuan, Borneo {Lou>e). In coll. Messrs. Godman and 

 Salvin. 



10. Tronga daatensis, n. sp. 



From typical T. crameri this differs on the fore wing in the sub- 

 apical spots being comparatively broader and larger, three small 

 lower spots occurring in the submarginal series, and in having a 

 nearly complete marginal row of small distinct spots : hind wing 

 with a marginal row of small distinct spots. Underside with all 

 these spots more prominent, the marginal row larger, and_ the discal 

 series of spots much larger than those in T. crameri. 



Expanse, 6 3f inches. 



Hah. Island of Daat, Labuan, Bjrueo. In coll. W. L, Distant. 



