BUTTERFLIES OP SAMOA AND SOME NEIGHBOURING ISLAND-GROUPS. 43 



grown larva is from 50 mm. to 55 mm. long, rather plump, tapering slightly 

 towards the anal extremity, and with the 4th, 5th, and 6th, segments con- 

 siderably thickened ; whole colour a beautiful golden green ; oblique darker 

 green stripes pointing backwards ; a darker narrow dorsal line widening out to 

 a diamond-shaped longitudinal spot at the segmental divisions ; a double stripe 

 between this and the oblique stripes ; from the 2nd segment, in a line with the 

 mouth, a somewhat triangular blotch of a deep velvety madder-brown runs 

 obliquely upwards through 3rd and 4th to base of 5th segment, and connects 

 over the back with a similar marking on the other side ; this stripe is continued 

 through the 6th segment, where it meets the broad shining white stripe, which 

 runs above claspers to vent ; the triangular blotch is bordered above by a 

 pale golden-green line ; on 8th and 10th segments a somewhat triangular 

 madder-purple blotch, bordered above by a narrow white stripe ; head shining 

 brownish-green, with a narrow white line down centre of face, and a V-shaped 

 mark over mouth ; legs pale reddish-brown ; ventral and anal claspers smoky 

 black ; two bluntish orange-coloured spines upon the 2nd segment, just behind 

 the head, and at the base of each of these a minute orange tubercle, between 

 which, and a little to the rear of the spines, is the nuchal valve, through which, 

 when the larva is irritated, the usual tentacles are emitted ; the tentacles are 

 of a deep carmine, and give off the accustomed pungent odour ; on 3rd and 4th 

 segments a pair of subdorsal blunt spines ; on 5th, and from 9th to 13th 

 segments, a single subdorsal spine on each side ; all the spines orange, faintly 

 tipped with black. These larvae varied a good deal ; in some the oblique 

 stripes and triangular blotches were entirely absent, the whole surface, above 

 the white spiracular stripe, being of a beautiful green, more or less marbled or 

 streaked with darker and golden greens ; while one or two larvae I took had 

 the markings upon one side only." 



The description of the pupa by the same author is as follows : " The 

 chrysalis is from 30 mm. to 35 mm. long, angulated ; head very strongly bifid, 

 the extreme points tipped with black ; back gradually arched ; sheath of 

 haustellum prominent ; costal edge of wing-case ridged ; body pinched in at 

 centre ; whole surface a beautiful golden apple-green ; spiracles well-marked, 

 darker ; segmental divisions clearly defined, pale yellowish-brown. The 

 chrysalis is invariably attached to the midrib of a leaf, while those of Papilio 

 schmeltzi are just as invariably attached to a stem." He notes that pupae in 

 captivity vary in colour with the colour of the background. 



