1921] MouLTON : Malaysian Butterflies. 177 



This Krakatau form suggests a possible hybrid between 

 hegesippus and melanippm. Possibly stragglers of 

 melanippiis from Java and hegesippus from Sumatra have 

 reached Krakatau since the great eruption and have given 

 rise to this new race. 



From the Engano form pietersi' it is easily distin- 

 guished. That form has a brown cell centre and brown 

 inter-nervular streaks on the hind wing ; there is also a 

 powdering of grej-violet on the white sub-apical patches 

 of the fore wing which is absent in insularis. 



Exp. al. 67 mm. 



Type 6 . Krakatau, December 1919. In Zoological 

 Museum, Buitenzorg, Java. 



25. Danaida affinis Fab. malaijaua Fruhst. 



Danaida afflnis malayana Fruhstorfer 1910, p. 201, flg. lid. 

 Danais abigar Distant 1880. p. 409. Tab. XUI, flg. 11. 



Loc. Selangor : Kuala Selangor, 2$ $ , (F.M.S. Agric. 

 Dept.). Johorc 1 s . (Raffles Mus.). 



Distrib. This subspecies is confined to Siam and the 

 Malay Peninsula. The species, however, has a wide range 

 extending east and south to the Philippines, Australia and 

 the Solomon Islands. The Malaysian forms are : — 



/). (I. fiiliginosj Hag. Rawean i. 



I). (I. artenice Cr. .lava. 



I), a. malayana Fruhst. Malay .Peninsula (and 



Siam). 



Fruhstorfer (I.e.) states that for a decade only one 

 male was known " whose locality, the Malay Peninsula, 

 was moreover still doubtful." The record of a male from 

 Johore and two more from Kuala Selangor is therefore of 

 interest. Distant {I.e.) records its discovery in Province 

 Wellesley. The Kuala Selangor males agree well with 

 Fruhstorfer's figure and with Siamese males kindly sent to 

 me for comparison by Godfrey. Distant's figure of the 

 Province Wellesley female agrees with Siamese females, 

 except that the white discal region of the hind wing is not 

 so sharply defined in his figure. 



The Johore male in the Raffles Museum differs so much 

 from malayana that one is tempted to give this southern 

 lorm siibspeciiic distinction. I jjrefer, however, to keep 

 it provisionally under malayana until the female and more 

 males are collected. The white discal region of the hind 

 wing is much restricted as in Fruhstorfer's figure of tam- 

 hora (fig. 77d.), the outer half is brown, with the veins 

 slightly emphasized with darker biown, not black ; the sex- 

 mark does not penetrate the white discal region as in 

 malay(uia. Ihe basal lialf of the cell in the hind wing l.s 

 brown, whereas in malayana this brown colouring seldom 



'DOHEHTY, 1891, p. 23, pi. I, flg. 1. 



