ON NEW AND LITTLE-KNOWN LEPIDOPTERA. ' 175 



margin broadly black. Underside, both icings dull hair-brown 

 with a slight gloss in some lights ; all the markings very indistinct, 

 of the colour of the ground, outwardly defined by a pale line. Fore- 

 wing with a round spot towards the middle of the discoidal cell ; 

 an oblong spot closing the cell ; a discal almost straight band of 

 five or sis rounded spots ; a very obscure submarginal fascia ; the 

 inner margin broadly paler than the rest of the wing. Hindwing 

 with the usual four small round basal spots ; a round spot in the middle 

 of the cell, with a spot anterior to it on the costa ; an oblong 

 spot closing the cell ; a large spot posterior to the cell in the 

 submedian interspace ; a somewhat regular discal band, of which 

 the posterior of the two anterior spots is placed midway between 

 the third spot of the discal series and the spot at the end of the 

 cell ; two indistinct marginal fasciae ; no anal lobe or tail, but at 

 the anal angle there is on the outer margin an elongated narrow 

 black spot anteriorly crowned with metallic turquoise-blue scales. 



This species appears to be nearest to A. davisonii, mihi/^ from 

 Burma, the Malay Peninsula, Sumatra, and Borneo, from which it 

 may instantly be known by the black border on the upperside of the 

 male being quite twice as broad. The markings of the underside are 

 practically the same in both. 



Described from five specimens in my collection, which do not 

 difiPer at all. I would not have ventured to name it had I not 

 found from the examination of perhaps a hundred specimens that 

 A. davisonii is constant in the width of the black border on the upper- 

 side in the male. It is probably the present species that Mr. H. J. 

 Elwes refers to when he wrotef : — " There seems to be considerable 

 variation in the breadth of the border " of A. davisonii. 



24. CAMENA CRETHEUS, de Niceville, PI. T, Fig. 35, 9. 



C- cretheus, de I^Ticeville, Journ, Bomb. Nat. Hist. Soc, vol. ix, p, 294, n. 24, pi, P, 

 fig. 35, male (1895). 



Habitat : Battak Mountains, N.-E. Sumatra. 

 Expanse : 9 , 1'4 inches. 



Description : Female- Upperside, both loings dull pale blue 

 without any gloss. Foreioing- with the base of the costa whitish ; the 



* Butt of India, vol. iii, p. 280, n. 845, pi. Frontispiece, fig. 135, male (1890), from Singapore, 

 t Proc. Zool. Soc. Loud.. 1892, p. 633. 



