BYPOLYCmNIN^. 117 



meant the anterior segments beneath which the head is hidden. The larva eats a small 

 hole half-way through the leaf, and then moves to a fresh place. July 30th. — Larva 

 now three-eighths of an inch long, somewhat fish-shaped. The " hood " is dented 

 anteriorly, and when seen laterally reminds one of the mouth of a fish. On this day 

 the head was first seen, it is light brown and shaped like that of a tortoise. A 

 spiracular white line is now visible on each side of the larva. On the twelfth segment 

 are two sub-dorsal white marks which slope from the dorsal line downwards and back- 

 wards. August 2nd. — Larva changed its skin. Its shape is now more accentuated, 

 the anterior portion of the body is stouter and more club-like, the tenth and eleventh 

 segments being also more constricted, the thirteenth segment more depressed and 

 broader. On the tenth and eleventh segments are two small sub-dorsal dots. It is 

 difficult to verify the segments, as the sides of the larva appear to adhere to the leaf. 

 August 6th. — The larva is now three-quarters of an inch in length, and seen either from 

 the front or the side the " hump " or " hood " forms a most perfect fish's head with the 

 mouth open, and two small black dots have appeared on the side of the hump about 

 midway from its summit, which have the appearance of eyes and complete the 

 resemblance. Laterally a black baud has appeared in shape like a bow, extending from 

 about the fifth segment, arching upwards just posterior to the sub-dorsal dots already 

 mentioned on the narrow part of the back and descending again at the beginnino- of 

 the flap-shaped thirteenth segment. On the ninth segment there is another pair of 

 sub-dorsal dots, which dots at this date have turned dark brown. There is also a 

 narrow dark green dorsal band, which darkens and widens out on the twelfth segment, and 

 fades away to nothing on the thirteenth segment. The larva, which up to the present 

 fed very daintily, now eats greedily, and appears to have almost doubled in bulk in the 

 last few days. August 8th. — The eye-dots are now larger and quite black, and in 

 addition there are two minute brown dots, one in front and one behind the eye-dot, 

 forming a horizontal line of three spots. The arched line already described is now quite 

 black and much broader. The sub-dorsal dots have merged into one dark patch. The 

 larva when fully extended is now three-quarters of an inch in length. August 9th. — 

 The larva has left its food-plant and looks like a bit of a shrivelled leaf. The ground- 

 colour has changed a very dirty brown, and the dorsal patch is a dark brown colour. 

 August 11th. — The larva still lying on the petiole end of the leaf head downwards. 

 The "hump" is of a yellowish-brown colour, and the area on which were the dark 

 marks is of a very pretty emerald-green colour with two dorsal white crescents, with a 

 minute white spot in the space between the two points of each crescent. All the 

 other markings have disappeared. The flattened anal segment is of a light yellowish- 

 brown colour. August 12th. — The larva pupated, attached by the tail. The pupa is 

 half an inch long, and resembles a small piece of dark brown dead stick. 



It is most difficult to find the larvae when they first emerge from the egg. Out 



