SUB-FAM. PIERIN^ 121 



bit rare in Lower Burmah, where I have only taken very 

 few specimens in November and December. I thinlc hardly 

 separable from G. harina, Horsfield. 



280. NiRMULA L^TA, Boisduval. 



Not uncommon about Bhamo. Scarce in Lower Burmah. 



281. N. RAMA, Moore. 



In my collection are three males taken by me in Pokoko in 

 the central or dry zone in Upper Burmah in the month of 

 February, when it was not uncommon. 



282. Terias hecabe, Linnseus. 



Terias is an excessively common genus in Burmah, but I 

 am only able to recognize two species of the genus in the 

 country, which I distinguish by the names of T. hecabe and 

 T. davidsoni (= T. silhetana ?), and which have been shown 

 by the breeding experiments of Messrs. Davidson and Aitkin 

 to be distinct. The former species has two, and the latter 

 species three spots in the cell of the underside of the fore-wing. 

 In the damp evergreen forests of Burmah there is no doubt a 

 tendency for the black marginal band of the hind-wing to 

 broaden, and in extreme cases to become diffused over the 

 whole extent of the wings. In some specimens in my collection 

 the whole of the upper surfaces of the fore-wings and hind- 

 wings are covered with a powdering of brownish black specks. 

 T. hecabe, as recognized by me, is an excessively common 

 insect at all seasons of the year. The wet and dry season 

 forms both appear to fly throughout the year. 



283. T. DAVIDSONI, Moore. 



I am not sure whether this insect should not remain under 

 the name of T. silhetana, Davidson and Aitken. I have in 

 my collection only two males and one female; but as when 

 collecting I did not discriminate the essential points of 

 difference between this insect and T. hecabe, it is probable 

 that I often overlooked it. As one specimen was taken on 

 the coast near Moulmain and one in the dry plains of Upper 

 Burmah near Sagaing, it is probable that the species is broadly 

 distributed. 



