THE BUTTERFLIES OF THE NORTH CANARA DISTRICT. 251 



while the dorsal points are replaced by long spine-like processes. 

 The figure will give a better idea of the difference than any description. 

 After writing the above, we have discovered that the two forms of 

 larvse produce imagines differing in the colour of the '' male-mark " ; 

 the butterfly resulting from the larvte with spines and the bi-pointed 

 head has a light male-mark ; that resulting from the other a 

 dark male-mark. Another fact which points to the two larvse pro- 

 ducing different species is that the two forms of larva are never found 

 together, for the smooth type of caterpillar is often found in quan- 

 tities on one bush; the larvse also very slightly in their habits ; and, 

 whereas the smooth caterpillar feeds on Alhizzia and Acacia^ the 

 spined one has never been found on any plant but Acacia. The butter- 

 fly with the light male-mark is typical N. hordonia^ we are informed 

 by Captain E. Y. Watson. See our former paper, p. 272, n. 24. 



41. N. viraja, Moore. Plate II, Figs. 2, 2a. 



This is not nearly so common as the last, but appears to be 

 generally distributed. The larva feeds on the blackwood tree 

 {Dalhergia latifolia), and also on Dalhergia raeemosa, and has similar 

 habits to those of N. hordonia^ Stoll, which it resembles in form, but the 

 head is bifid at the top, and the dorsal points are wanting, while the last 

 segment is produced into a single blunt point. The colour is dark 

 greenish-brown, the forepart, as in N. Jiordo7iia, being much darker than 

 the rest, but bordered with pale grey. The pupa is like that of 

 iV. hordonia^ but rather broader, and the wings more evenly expanded. 

 See our former paper, p. 351, n. 43. 



42, N. leucotlioe, Cramer {N, varmona in de Niceville), 



This is by far the commonest and most widely spread of the genus. 

 . It may be found in any month of the year and anywhere, frequenting 

 gardens and cultivated land more than the others. The larva, which 

 feeds on various peas, is very like that of N. jumbaky Moore, but is 

 more rugose. It has not the curious habits of the last two. The pupa 

 also resembles that of N. jumbah. 



43. N. ophiana, Moore. 

 This is the rarest of our Neptes. We once found eggs, which 

 produced larvse very like those of N. jumbah, Moore, but they died. 



