152 [December, 



2. — P. mortimm, n. s. 



This species is similar to P. tricJiopteryx in form, size, and colours. 

 Thus I should not have separated it, but for a difference in the details 

 of the reticulation. In the inferior wings the transverse vein on the 

 anterior margin is emitted from the superior brancli (1), while in 

 P. trichopteryx it is emitted before the point whence this branch departs. 



I admit that this difference alone is perhaps too slight to justify 

 the formation of a distinct species, especially as in one individual out 

 of five of P. trichopteryx now before me, the transverse vein is emitted 

 precisely from the point of departure of the superibr branch (1) ; but 

 as the determination of insects in copal is always ratber difficult, I have 

 thought it best to note the species as distinct until more materials shall 

 prove to the contrary. 



In gum copal (Anime), from Zanzibar. One specimen, received 

 from Baron Osten-Sacken. 



3.— P. triste, (Nietner M.S.) n. s. 



Totally black ; ocelli rather distant ; front of the head, palpi, an- 

 tenna?, legs and body, black ; superior wings blackish-brown, clothed 

 with brown and silvery scales ; inferior wings greyish, hyaline. 



Long cum alis 2| mill. ; exp. alar. 5 mill. 



Ceylo]i : Rambodde (Nietner), on the walls of houses. 



This apecies is closely allied to P. trichopteryx, but it is smaller; 

 and, besides, totally black. I have seen but trvo examples. 



4. — P. niorosum, n. s. 



I have seen but a single example of this species, with the colours 

 probably deceptive ; the scales being almost altogether Avanting. P. mo- 

 rosum closely resembles P. triste in form, and in the reticulation, but it 

 is immediately distinguished by its less broad front, and in the ocelli 

 being placed somewhat closely together. It might be considered as the 

 male of P. triste were it not for the golden scales on the wings, which 

 are entirely wanting in that species ; but the males of P. trichopteryx, 

 if I am not mistaken in the sexes, differ in no way from the females. 



P. morosum is of a dingy grey ; the terminal joints of the palpi 

 black ; on the superior wings, especially towards the apex, are to be 

 seen some brilliant golden scales, but no silvery ones. 



Long, cum alis 2i mill. ; exp. alar. 4| mill. 



Ceylon : Bambodde (Nietnei*), on the wall of a house. 



{To he conbi/ivued). 



