BUTTERFLIES OF BORNEO. 85 



The Natuna island forms appears to belong to an- 

 other sub-sp. 7. daos perakana, Fruhst. 



[This common and distasteful species is mimicked by a 

 Chalcosiine moth, Isbarta pieridoides, and by the female of 

 Papilio delessertij. 



Genus Danais. 



Sub-genus Eadena. 



5. Danais {Eadena) vulgaris, Butl. 



Danais vulgaris, Butler., Entom. Month. Mag. xi, p. 164, 

 (1874). 

 A common and widespread species, occurring in Singa- 

 pore, Malay Peninsula, Sumatra, Java, Nias and Natuna 

 Islands. 



[This species and Paralitica eryx, Fab., are mimicked 

 in Borneo by the following butterflies : — Elymnias lais, 6 t 

 Euripus halitherses, 5 an d Papilio megarus]. 



6 Danais {Radena) juventa, Cram. 



Papilio juventa, Cramer. Pap. Ex. ii, pi. 188 3. (1779). 



A common sea-side species, ranging nearly all over 

 the Malay Archipelago. 



Sub-genus Tirumala. 



7. Danais {Tirumala) septentrionis, Butl. 



Danais septentrionis. Butler, Ent. Month. Mag. vol. xi, 

 p. 163, (1874). 



Occurs also in India, Ceylon, Burma, Siam, Malay 

 Peninsula, Java, Sumatra, Formosa. 



Mimicked in Borneo by : — Papilio macareus macaristus. 



8. Danais {Tirumala) microsticta, Butl. 



Danais microsticta. Butler, Ent. Mouth. Mag. vol. xi, 

 p. 163. (1874). 



Occurs also in Java and Nias. 



Fruhstorfer considers this to be merely a sub-species 

 ot septentrionis. 



R A. Soc, No. 41, 1904, 



