SPHINX PINASTRI. 29 



to a rather fine point, but viewed from above was seen 

 to be slightly forked at the blackish extremity; the 

 spiracles were red, finely outlined with black. 



Between the 26th and 29th of August most of the 

 larvaB moulted for the fourth time, and on the last day 

 of August and 1st of September I figured the most 

 advanced, which was then 2 inches 5 lines in length, 

 its proportions were slender, the head somewhat 

 bluntly conical, the segmental divisions were rather 

 deep, as were also the subdividing wrinkles, eight in 

 number on each segment, beyond the thoracic seg- 

 ments, excepting the twelfth, which bore the rough 

 curved caudal horn ; these deep wrinkles were blackish- 

 brown and made the segments appear like a series of 

 rings. 



The colouring and design of the larvaB were now 

 very beautiful, the skin soft and smooth, the head, 

 plate of second segment, the anterior legs, ventral 

 prolegs, the hinder parts of the anal prolegs, the anal 

 flap and the caudal horn were all as glossy as if highly 

 varnished, and were sprinkled with raised black dots ; 

 the broadish dorsal stripe became gradually thicker 

 towards the middle of each segment and then narrowed 

 as gradually towards the end, the white or yellowish 

 stripe by which it was bounded was consequently 

 thicker at the beginning and at the end of each seg- 

 ment than in the middle ; this was beautifully relieved 

 by a stripe of the full and bright green ground colour, 

 followed by another or subdorsal white stripe, which 

 also gradually widened to the middle of each segment ; 

 below this was a broad stripe of the green ground 

 containing a white blotch in the middle of each seg- 

 ment, in which was set the orange-red spiracle edged 

 with black ; close beneath this was the slightly inflated 

 pale yellowish spiracular stripe, interrupted at the end 

 of each segment ; the belly was wholly of the green 

 ground colour ; the head was orange-reddish, more or 

 less tinged with greenish, the deep yellow stripes at 

 the side were bordered in front with rather dark red 



