54 JOUKNAL, K.A.S. (CEYLON). [ VOL. II., PaKT I. 



with a list of our indigenous Butterflies," and I purpose 

 that the Entomological portion of these sketches shall in a 

 manner constitute a continuation of that Paper. 



Okdo. LEPIDOPTERA. 

 Sectio. DIURNA. 

 Genus, Papilio. 



This genus contains most of our largest diurnal Lepidop- 

 tera, two or three species measuring upwards of six inches in 

 expanse. It is distributed over the whole of the Island, one 

 species or another being found everywhere. Of all at 

 present known, but one has the hind or inferior wings, 

 terminating in long slender sharp pointed tails ; eight have 

 moderately lengthened tails, broad and spatulate ; three 

 have the tail still less produced and spatulate, gradually 

 approaching the remaining three, in which the tail is 

 altogether obsolete. 



The Aurelia are attached to a branch by the tail, and a 

 band round the middle ; the head but little inclined, except 

 in a few instances, which shall be noticed under the species 

 in which they occur. 



The larvse are naked, and furnished with a fleshy, furcate 

 tentacle, on the shoulder as it were, which they have the 

 power of protruding and retracting. It is moistened with a 

 strong scented fluid, and is, I believe, a means of defence 

 against its parasitic enemies, the Ichneumon flies, which 

 deposit their eggs in the living caterpillar ; if the larvae is 

 touched the tentacle is rapidly thrust out, and struck on 

 the irritating object. I observe that all the Papilionidse 

 whose metamorphoses I have followed feed on aromatic 

 plants, such as the Citron. May not the juices of these 

 plants supply the scented fluid alluded to ? 



The eggs present under the microscope a variety of 

 singular forms, and the succession of changes from them to 



