335 



NEW FORMS OF THE GENUS CHARAXES 

 (NYMPHALIDAE) FROM AFRICA AND MALAYA. 



By J. J. JOICEY and G. TALBOT. 



1. Charaxes latona Btl. aruanus Btl. $ . 



Till Mr. W. J. C. Frost began to make collections on the Aru 

 Islands for the Hill Museum, this race was only known by the ? type. 



$ . Upperside rather different from other forms of latona, and 

 recalling harmodius Feld. Fore wing with much narrower black 

 margin than in latona papuensis Btl., broader above vein 6, and reaching 

 vein 2, its inner edge scalloped, and near it on the brown area a faint 

 dark line marked in 5 and 6 by heavier scaling. Below vein 2 a 

 rounded black submarginal spot divided by a line of ground-colour at 

 the fold. A small postdiscal spot in 6, and a smaller one below it in 5. 

 Hind wing without the black margin of latona forms, but with a series 

 of submarginal spots. A large spot in 7 reaching the margin, an 

 elongate spot in 6, a smaller ovate spot in 5, and two smaller ones in 3 

 and 2 ; two black anal dots marked with bluish-white. 



Underside similar to papuensis, and except for the less strongly 

 marked postdiscal scalloped lines on both wings, there is perhaps no 

 constant difference. 



Length of fore wing : 38 mm. 



Aru Islands, March to May, 1916, W. J. C. Frost, three $ S . 



We are doubtful whether one is correct in assigning aruanus to 

 latona. We have two similar-looking forms, one from the Saddleberg 

 in late German N. Guinea, and the other from the Hydrographer 

 Mountains in British N. Guinea. Together with aruanus these have 

 several characters not found in latona. It may be that we are dealing 

 with representatives of harmodius or other western species. 



2. Charaxes poly 'xena Cram, baliensis subsp. nov. 



iUlied to poly xena varenius Fruh. from Bawean. 

 3 . Fore wing with much broader distal black than in the Javan 

 baya Moore, extended proximally in 5 and 6 to the upper angle of cell. 

 The brown area reaches vein 5 with a short stripe in 4, absent in 



