48 JOURNAL, BOMBA ¥ NATURAL HISTORY SOCIETY, Vol XIV, 



sultana, Adams and White, unterscheiden sollen, ist weder auB de 

 Abbildung noch Beschreibung zuersehen." 



The types of both species are, however, in the British Museum, and 

 the species, although very closely allied, are sufficiently distinct. 



sultana. 

 Smaller — 



No pinkish spots on the basal 

 half of the tegmina. 



A number of whitish spots on 

 the apical half of the hindwings. 



Basal half of tesmina black. 



giganteus. 

 Larger — 



A number of pinkish spots on 

 the basal half of the tegmina. 



No whitish spots on the apical 

 half of the hindwings. 



Basal half of tegmina yellowish 

 rather than blackish. 



These slight differences are constant in the 10 ex. of giganteus and 

 3 examples of sultana which I have seen. Butler's figure of giganteus 

 does not give a good idea of the colouring of the tegmina (1874, 

 P. Z. S., PI. 15, fig. 2), in which the yellow nervures are sufficiently 

 pronounced to afford a yellowish rather than a blackish appearance 

 to the basal half. I possess a small specimen of sultana from Kina 

 Balu, Borneo. 



Zanna 

 occurs in the Ethiopian and Oriental Regions ; the species are 

 usually local and scarce. The two Sinhalese are closely allied, but 

 while the upper surface of the abdomen is blackish in affinis ("Westw.), 

 it is pale flavous in doheni (Stal). The latter is figured on PI. 1, 

 fig. 3. 



Z. terminalis (Gerst.) 



= Pyrops terminalis, Gerst., 1895, MT. Naturw, Ver. Neu.-Vorp. 



Riigen, XXVII, p. 19. 



I have seen specimens from British Borneo, Sarawak, Singapore 



and Penang. It is closely allied to Z. nobilis (Westw.) and differs 



from the typical section by the very long, curved, tubercujate, strongly 



carinate capital process and by the somewhat feebly carinate scutellum. 



The neuratlon of a specimen in Mr. Stanley Edwards's collection is 



abnormal in the right tegmen, the interior basal nervure of the 



clavus bifurcating near its apex, the interior veinlet meeting the 



apical nervure of the clavus apical to the junction of the latter with 



the exterior veinlet. 



