278 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1890. 



notice, is that the last pair of legs are almost obsolete, and are not 

 used in walking. 



We found this from June to October on the " Goolmohr " (Pain- 

 ciana regia) , the "Khairee" {Casal/pmia mimosmdes) and several other 

 trees. The larva, like those of most wary and strong-winged but- 

 terflies, is very shy and cautious in its habits, feeding by night and 

 remaining motionless all day ; but it is , much preyed on from the 

 time it leaves the egg, and only a small proportion seem to reach 

 maturity. The pupa is almost oval, smooth, and without irregular- 

 ities ; in colour green, with faint white lines more or less distinct. 



39. Char axes fabius, Linnaeus. Plate A, Figs. 3, 3a. 



We found a few in Karwar in July and August, and have also 

 reared it in Khandeish and the Deccan, always on the tamarind tree. 

 The larva differs from that of C. athamas in having the outer pair of 

 horns longer than the inner, while in C. athamas the reverse is the 

 case. The colour is bluish-green, with a small semicircle of white 

 in the middle of the back. The pupa is like that of C. athamas, 

 but uniformly green. 



40. Oharaxes imna, Butler. Plate A, Figs. 4, 4a. 



Larva of the usual form, head very broad, outer pair of horns 

 longest, last segment flat, square, and ending in two points ; last pair 

 of legs almost aborted ; colour rich, dark green, with a large semi- 

 circle of pinkish-white in the middle of the back and a yellow 

 lateral line ; horns and sides of face rusty brown. We reared three 

 specimens of this on Aglaia roxhurgldana, a very common tree in 

 Canara, belonging to the order Meliaceie. Among butterflies the 

 length of the larval life seems to be generally proportional to the 

 robustness of the insect in its perfect state, and, as might be expected, 

 C. imna is a Methuselab among butterflies. One found on the 6th of 

 October, then evidently a few days old, became a pupa on the 25th 

 of November. The butterfly emerged on the 9th of December. 



Like most smooth caterpillars, this species eats its skin when cast, 

 but not the head-case. When touched it appears to use its horns 

 defensively, as does also C. athamas. 



Note. — The figure represents the larva and pupa, of a fine female, exactly natural 

 size. 



(To be continued.) 



