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666 JOURNA L, BOMBA Y NA TURAL HISTORY SOCIETY, Vol. XIX. 



folded on to the face and bright rose-coloured, the middle ones lying 

 alone the margin of head between their own bases and the bases of 

 the lateral horns : these horns are the pink stripes seen under the 

 skin before emergence, the face being doubled back along its dorsal 

 line ; the head then is inflated by successive breaths of the larva 

 and broadens out, one horn suddenly detaches itself from the head- 

 surface, then another, gradually straightening out more and more with 

 the breathing growing somewhat in length though not in girth and 

 assume their final shape, each little s})ine existing from the beginning 

 and detaching itself from a surface it has been folded against as did 

 the hole horn : the face flattens and broadens out ; the old head is 

 rubbed off the mouth, where it adheres after the skin has burst a'.\ay 

 from it by friciion against the leaf-surface and the whole business 

 is ended up by a thorough cleaning of the new mouth against the same 

 surface. The cast skin, thin and white in a heap at the tail end on 

 the leaf where it is attached by the claspers to some web, is then 

 completely devoured. An egg laid on the 19th of October produced a 

 larva on the 25th ; this larva moulted the first time on the 2nd of 

 November ; the second time on the 14th ; third on the 26th ; fourth on 

 the llth of December ; fifth on the 2(ith ; changed to pupa on 25th 

 January and the butterfly appeared on the 17th of February, which 

 gives seven days in the egg ; exactly three months as larva, but these 

 were calendar months, amounting to 13 weeks ; the pupal stage lasted 

 23 days. Three eggs obtained on the 28th July ])roduced larv?e on 

 the 4th August : these moulted on the llth; one moulted for the 

 second time on the 18th, two 15 hours later : again two moulted on 

 the 25th and for the last time about a fortnight later. These larvae 

 took only two months to grow : the pupal stage lasted a fortnight. 

 In the one case the butterfly emerged four months after the egg was 

 laid ; in the other the period was only two months and three-quarters. 

 The monsoon insect was small and dark, the other large and lighter. 

 The pupa is attached much in the same way as that of Ch. imna ; 

 the imago has the same habits for male and female, but is even more 

 seldom seen on or near the ground. The butterfly has been obtained 

 in South India ; along the Western Ghats ; in Assam, Burma, 

 Tenasserim and extends to Java. It is probable that it is even more 

 widely distributed, buf, from its habit of remaining high up and 

 keeping to high jungle, it is difficult to catch and escapes notice. 



