BUTTERFLIES OF SAMOA AND SOME NEIGHBOURING ISLAND-GROUPS. 41 



The egg, which is cream-coloured and nearly hemispherical, is laid singly 

 on the underside of a leaf of Melicytus. The sculpturing is shallow, consisting 

 of about forty longitudinal ridges, occasionally coalescing and connected by 

 very inconspicuous transverse ridges. Micropylar area flat, sculptured like the 

 rest of the egg. Height 0'47 mm., diameter 0*56 mm. 



Larva (PL IV, fig. 8). Head mainly black, anteriorly pale green ; body 

 pale yellowish-green, with a broad blackish middorsal line and an interrupted 

 white spiracular one ; legs and prolegs pale yellowish-green ; spines as in 

 /. boivdenia but much shorter, pale grey. Length when full-grown about 

 20 mm. Like that of /. bowdenia, the larva drops by a thread when disturbed, 

 but even more readily. It is sometimes attacked and sucked by a Pentatomid 

 bug (Platynopus melacanthus Boisd.). 



Pupa (PL IV, fig. 9) dimorphic, one form pale green with the following 

 markings on the dorsal surface : a double small dark-brown spot on the head, 

 and another on the thorax ; a short streak of the same colour on the inner 

 margin of the wing-case, and a rather large blotch of it on segments 2, 4, and 6 

 of the abdomen ; on the head and each segment of the thorax and abdomen, 

 except the last, there is a minute metallic gold spine. The second form is 

 similar, but paler green, the dorsal surface much marked and suffused with 

 purplish-brown, the metallic markings more extensive and more coppery in 

 tint, and the dark brown areas paler and less well-defined. The two forms 

 are quite distinct, and intermediates do not seem to occur. The pupa is attached 

 to a pad of silk on the underside of a leaf of the food-plant ; the cremaster 

 is relatively exceptionally large, and extends ventrally for a considerable 

 distance ; accordingly the pupa does not hang down vertically like most 

 Nymphalid pupae, but lies with its whole ventral surface almost touching the 

 leaf. The pupal stage lasts six days. Larvae and eggs were found in March 

 and July. 



14. Papilio godeffroyi Semper. 

 Papilio godeffroyi Semper, 1866, p. 469, PL XXIV. 



Herrich-Schaeffer, p. 78. 

 Butler, 1874, p. 289. 

 Schmeltz, p. 191. 



Mathew, 1885, p. 361, PL X (larva and pupa). 

 Fraser, p. 148. 



