10 - ACRONYCTA STRIGOSA. 



colour, with darkish brown head ; a deep, dingy, 

 pinkish plate on the second segment ; the thoracic seg- 

 ments tinged a little internally with a vessel of this 

 colour ; behind this the back is particoloured with this 

 and the white ground, as this pinkish colour appears 

 on two segments, alternating with two white ones, so 

 that beyond the thoracic segments are three distinct 

 bands of dingy pink, and two of faint greenish-white ; 

 the body bearing some long dusky hairs. It attacks 

 the lower cuticle of the leaf, and eats out little pits, 

 leaving only the upper cuticle, which then shows as a 

 transparent blotch. After feeding four or five days, 

 the deep pinkish marks and the head become dark 

 purplish brown, and the former can be well seen, 

 located on the second, fourth, fifth, eighth, ninth, 

 twelfth, and thirteenth segments on the back, and the 

 ground colour is a pale pellucid, rather bluish green. 



The most forward individual moulted the first time 

 on the 2nd of August, while two others were laid up 

 for that purpose ; the one that had moulted was soon 

 feeding again on the shining upper surface of the leaf. 

 The head was now black, or black-brown, and the 

 dark marks crimson-brown ; the ground colour of a 

 cool pellucid green, all the skin shining as though 

 varnished. By the 8th others had moulted the second 

 time, as I found their cast skins, and they now showed 

 small darkish tubercles on the intermediate segments, 

 but the others were still conspicuously blotched on 

 the full width of the back ; the ground colour still a 

 cool translucent green. By the 14th of August they 

 had moulted the third time, and now had the head black, 

 and dark purplish crimson-brown blotches down the 

 middle of the back on every segment, but broadest on 

 those segments which first bore them and narrower 

 on the other segments, as on the sixth and seventh, 

 where they were bordered with faint greenish- white 

 distinctly, and similarly a little on the other segments, 

 but thinner and fainter ; the sides, belly, and legs were 

 of a lightish cool green colour ; the tubercles on the 



