86 MIMICRY, AND OTHER PROTECTIVE 
bands or stripes. One of these, Danais niavius, is 
exactly imitated both by Papilio hippocoon and by 
Diadema anthedon; another, Danais echeria, by Pa- 
pilio cenea; and in Natal a variety of the Danais is 
found having a white spot at the tip of wings, accom- 
panied by a variety of the Papilio bearing a corre- 
sponding white spot. Acreea gea is copied in its very 
peculiar style of colouration by the female of Papilio 
cynorta,. by Panopza hirce, and by the female of Elym- 
nias phegea. Acrea euryta of Calabar has a female 
variety of Panopea hirce from the same place which 
exactly copies it; and Mr. Trimen, in his paper on 
Mimetie Analogies among African Butterflies, published 
in the Transactions of the Linnxan Society for 1868, 
gives a list of no less than sixteen species and varieties 
of Diadema and its allies, and ten of Papilio, which in 
their colour and markings are perfect mimics of species 
or varieties of Danais or Acrea which inhabit the same 
districts. 
Passing on to India, we have Danais tytia, a butter- 
fly with semi-transparent bluish wings anda border of 
rich reddish brown. This remarkable style of colour- 
ing is exactly reproduced in Papilio agestor and in 
Diadema nama, and all three insects not unfrequently 
come together in collections made at Darjeeling. In 
the Philippine Islands the large and curious Idea 
leuconée with its semi-transparent white wings, veined 
and spotted with black, is copied by the rare Papilio 
ideeoides from the same islands. 
In the Malay archipelago the very common and 
