production of resemblance in allied species of Butterflies. 419 
Mr. Moulton, a butterfly with medium sized white spots 
on both wings, but in some specimens these are much 
smaller than in others. In Ceylon these white spots 
either disappear altogether on the forewing or are repre- 
sented by obsolescent brownish markings rather paler 
than in the rest of the wing, but typical #. coreta is never 
found. In order to avoid repetition I may say that the 
other two species, likewise in Ceylon, lose their conspicuous 
white spots, these being replaced by pale brownish. We 
must assume that if the South Indian Hwploeas are a 
Miillerian combination so also are their relations in the 
neighbouring island. Huploea core is by far the most 
abundant and widely distributed of the three. It is found 
in Ceylon and all over India, occurring even in the hottest 
and driest portions of the plains. In South India it 
closely resembles KH. coreta, and like it in some specimens 
the spots are much smaller than in others. We find them 
increasing in size the further north we go, until in the 
North-West Himalayas they become so large that the 
insect was described by Butler as a distinct species, to 
which he gave the name #. vermiculata. Many years ago 
the late Mr. de Nicéville wrote as follows regarding this 
supposed species: “The Z. core of North India approaches 
the #. vernviculata type in precisely the same way as the 
E. core of extreme South India approaches the JL. asela 
(Ceylon) type . . . the type (vermiculata) is not constant 
even in the same locality. In a large series collected at 
Naiashahr in the Saharanpur district by Mrs. Deane, there 
were several specimens of typical #. vermiculata male 
and female, several of typical #. core, and numerous 
intermediate forms.* 
It is in this part of its distribution, as well as in the 
plains of the Punjab that Z. core is the only Huploca found. 
It is completely isolated from other members of the group, 
and we can assume in the absence of evidence to the 
* T saw a typical H. vermiculata in the collection in the Coimbat- 
ore Museum, and on writing to the captor for information about it 
Mr. Hearsey, of the Indian Forest Department, writes,“ #.vermiculata 
was captured by me March or April (cold weather, N. M.) 1899 in the 
Cuddapa District (Madras Presidency, N. M.) on the top of a detached 
hill known as Lanka-Malai at an elevation of about 3,000 ft., and I 
came across several more of them in the same locality, the only one 
with me being retained as a ‘Sport.’” The form will evidently 
occur where the climatic conditions are favourable. 
