34 METAMORPHOSES OF 



searches tor a convenient spot for undergoing the change, 

 such as the underside of the branch of a tree, the coping of 

 a wall, etc. It then spins the web ready to hook on to when 

 changed to the pupa state, and remains for three or four 

 days attached by the anal and last pair of abdominal legs ; it 

 then leaves-go with the abdominal and hangs by the anal 

 legs alone for one or two days, when it changes to the 

 chrysalis. (See fig. 3, plate III.) 



Imago, a, b, c, Dec. 5-14, 1877. * 



The butterfly makes its appearance at the beginning of 

 December. It is crepuscular in its habits, never flying till 

 about sunset. The flight is powerful and rapid. Groups 

 of five or six males and one female may often be seen flying 

 backwards and forwards, and occasionally settling on a 

 branch of a tree. 



There is only one brood of this butterfly in the year. 



XIX. — Opsiphanes Glycerie. 



Papilio Glycerie, Fabricius, Mant. Ins. ii., p. 36 (1787). 

 Clerck, Icones, pi. 84, fig. 3, 4, ? . 



Potamis S. Cassia, Hiibner, Samml. Exot. Schmett., pi. 75, 



f. 3, 4, ? . 



J {a, Full-fed specimen and one other. San 



^^^^' I Paulo, April 10, 1878. 



This extraordinary caterpillar feeds on the leaves of the 

 banana. In the first stage it is pale yellow, with black head 

 covered with curious flat hairs, and the diverging horns on 

 the last segment are also black, with a single long hair on 

 the point. After the first change of skin, the head becomes 

 of a pale pinkish grey colour, and is furnished with eight 

 horny excrescences, four on each side, the four anterior ones 



