868 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XX. 



in collecting the eggs of C. amata as it lays its eggs in large batches of five 

 to as many as forty ; C. protractus and vestalis on the other hand always 

 lay singly so that specimens had to be followed round patiently until a 

 dozen or so eggs had been secured, after which the parent would be netted, 

 killed and laid aside to compare with the children when they finally 

 emerged from the pupa. Amata differs from all other forms of its genus, 

 in thus laying its eggs in batches and as one would suspect, the resultant 

 larvEe are gregarious. The larvae of all other forms feed singly. Although 

 C. protractus and vestalis are often seen in cop with C. amata yet curiously 

 enough the two former have never been seen by me in connection. The 

 affinities between the two is so close and on the other hand both diverge 

 so widely from amata that one would suspect a different state of affairs. 

 On the wing I have taken a female vestalis with the discal and juxta-discal 

 areas beautifully suffused with the salmon-buff colour of protractus and this 

 I regard as a hybrid of these two forms, although, as I have already men- 

 tioned above, I have never seen them in cop. I have another form of 

 C. protractus in which the salmon-buff ground colour is almost entirely 

 replaced by the creamy white of vestalis and this too may be regarded as a 

 hybrid between the same forms. All three forms show wide variations, in 

 fact a whole series may be obtained of such. Colotis is pre-eminently 

 noted for the extreme variations which are seen amongst its various forms 

 and these are rightly ascribed to influences of climate, temperature and 

 perhaps food, it may be, however, that hybridism plays a greater part than 

 hitherto suspected. 



I append a description of the larvee of C. protractus and vestalis as I 

 believe they have not hitherto been described. 



C. protractus. — Ovum pure white, ampulliform in shape, strongly ribbed. 

 Hatch out on the third day. 



Larva. — Grass green, at first a crimson stippling along the sides but this 

 gradually fades in successive moults until finally lost in the last. The 

 final skin has a peppering of white minute dots and tiny bristles covering the 

 skin. There is a white dorsal line along the back which may or may not 

 have a yellow edging. In shape, cylindrical like that of T. hecabe. This 

 larva is interesting in that it is the only one of its genus (so far as the 

 Indian forms are concerned) that has not got a black head when first 

 emerging from the ovum. 



Pupa.— Creamy, flesh-coloured or pale green with no markings ; body 

 stout, with a stunted point at the head. Suspended upright by waist-belt 

 and anal attachments. 



C. vestalis . — Ovum pure white, ampulliform in shape, strongly ribbed. 

 Hatching on the third day. 



Larva. — First skin bears a shiny, jet-black head, body grass-green with 

 crimson-stippling latterly which in the posterior three segments spreads 



