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XXII. On the Diaposematic Resemblance between Huphina 
corva and Ixias baliensis. By F. A. Dixy, M.A., 
M.D., F.LS., Fellow of Wadham College, Oxford. 
[Read December 5th, 1906. ] 
PEATE XOXXT. 
AmonG the geographical forms of Huphina nerissa, Fabr., 
there occurs in Java, Bali and Lombok a fairly well- 
marked island race to which Wallace in 1867 gave the 
name of corva. A similar form, called by Butler from 
its habitat H. swmatrana, seems almost indistinguishable 
from Wallace’s type. 
The object of the present paper is to call attention to 
the remarkable similarity that exists between both sexes, 
but especially the female, of Huphina corva, and certain 
females of a form of Jzias found in the same locality. 
The Jxias in question belongs to the group containing 
I. venilia, Godt., and J. reinwardtii, Voll., being indeed 
scarcely separable from the latter. It is the local race 
inhabiting the island of Bali, and has accordingly received 
the name baliensis from Fruhstorfer. 
The resemblance here spoken of is well seen on Plate 
XX XI, but is still more striking when the actual specimens 
are examined. It can, I think, scarcely be doubted that 
the likeness between these forms of such diverse affinities 
has a mimetic significance. The specimens represented in 
Fig. 3-7 were all captured on the same occasion by Mr. 
R. Shelford, M.A., F.E.S., and were kindly given by him 
to the Hope Department at Oxford. It does not appear 
to have been noticed that the series contained an Lvias 
until the insects were on the point of being incorporated 
with the general collection. 
It will be observed that the resemblance to [vias balien- 
sis, though shared by both sexes, is stronger in the female 
than in the male Huphina. This is in accordance with the 
well-known rule as to the superior means of protection 
employed by the female sex in correspondence with its 
TRANS. ENT. SOC. LOND. 1906.—PARTIV. (JAN. 1907) 
