48 DIUENAL LEPIDOPTERA. 



possessing a third subcostal nervule, and in the greater length of the terminal joint of 

 the palpi. In colour, and in having the tuft of hair between the wings, it appears to 

 come near Iolaus, but has very different palpi. 



Camena Ctesia, Hewitson. Plate XX. £ figs. 1, 2. 



Ufperside. Male. — Brilliant ultramarine blue marked by a triangular dark brown spot : 

 all the margins broadly dark brown. Posterior wing with the apex dark brown : an apical 

 brown spot irroratcd with white. 



Underside glossy grey. Both wings with a brown spot at the end of the cell, each 

 crossed beyond the middle by a band of dark brown spots bordered with white : each with a 

 band of brown (scarcely visible on the anterior wing) near the outer margin. Posterior wing 

 with a submarginal band of brown spots, the two apical spots crowned with orange. 



Exp. 1-j^j inch. 



In the Collection of W. C. Hewitson and F. Moore, from Northern India. 



Genus HYPOLYOENA. 



Hypolycena, Felder. 



I had set apart the insects which are now included in Hypolycaena as the represen- 

 tatives of a new genus before I had the pleasure of knowing that Dr. Felder had thus 

 proposed to unite those which form the eastern portion of the present genus. I have 

 adopted his genus, but have made it more comprehensive, and, I hope, not less compact, 

 by adding the African species which have been included in Iolaus, IT. Amasa with its 

 long tails forming the connecting link of the two groups. The palpi of both sexes are 

 nearly alike and very erect, the second joint compressed, the terminal joint of some of 

 the females very long and like a fine needle. They are without the third branch from 

 the subcostal nervure, and thus show their relationship to some of the species of Myrina 

 and the true Theclas. They are without the tuft of hair between the wings. H. Cceculus, 

 though in appearance more like Iolaus, has the palpi of this genus, and has not the 

 third subcostal branch. 



I do not know H. Freja of Fabricius, and therefore place it here with doubt. 



