CHAPTER I FAMILY PAPILIONIDUE Genus: I. PAPILIO CAPYS (Hub). This is one of the common Papilios of the country. I have met with it everywhere in the Colony. It is a very rapid flyer and fond of settling on flowers in forest tracks. On many occasions I have found the larvae on orange trees in companies of a hundred or more closely packed together side by side on the trunks of the trees. When irritated the larva extrudes a pair of orange-coloured processes, each process being about three-quarters of an inch in length, from receptacles situated immediately behind the head. As soon as these processes are extruded a very pungent odour is given off which resembles that produced when a green orange rind is cut or bruised. This is one of the methods provided for its defence against enemies, for as soon as danger threatens the processes are extruded, and immediately the atmosphere is filled with a pungent and irritating odour. When the danger appears to be over the