which will make a most important addition to our present con- 

 fined knowledge of the productions of that interesting island : 

 indeed these collections exceed in extent, preservation, and value, 

 any which have been brought to this country. 



The general resemblance of this species with F apilio J aims oi 

 Fabricius is so great, that it might pass on a cursory view as a 

 mere variety, did not the form of the anterior wings at once point 

 out the difference. In the present insect the posterior and exte- 

 rior margins are of equal length, giving a narrow appearance to 

 the wings, much resembling some of the true Papilioriida ; but 

 in P. Jainis, these wings are much broader, more obtuse, and 

 the length of the posterior margin much greater ; other minor 

 differences exist in the colouring and markings. My valued 

 friend A. H. Haworth, Esq., F.L.S., &c. possesses a fine pair of 

 the true P. Jainis in his rich and extensive collection; and the 

 liberality with which it is constantly and freely opened to me, de- 

 serves my warmest thanks. 



From these two species I have formed the present genus, the 

 characters of which will distinguish it from that of Ilatera 

 (Fabr.), a scanty genus confined to South America; and this seems 

 to occupy its place in India : both will come in the natural family 

 of HippaixhicE,. Only one sjjecimen (a male) exists in Dr. Hors- 

 feild's collections ; I could not therefore dissect the mouth, &:c. 

 On the inner borders of the inferior wings is a lengthened tuft of 

 fine hairs: the anus beneath has on each side an obtuse lergth- 

 ened process, partially attached, and which appears to supply 

 the place of the, lateral valves. It is represented on a sprig of 



G^RTNERA racemosa, 

 which, although differing slightly from the figure of Dr. Rox- 

 burgh's Coromandcl Plants, p. IQ. 1. 18, Dr. Horsfeild considers 

 as the same plant. The Ja\anese name is Kakas, 



