SPHINX LIGUSTRI. Ill 



sions of each segment can be seen distinctly. The 

 larva is over 10 mm. long at the first moult ; when 

 this moult is passed the skin is covered with little 

 points arranged in transverse rows on the subdivisions 

 of the segments, and bearing tiny bristles ; the slant- 

 ing streaks on the side now become visible, that is 

 to say, on each subdivision there is one pale point in 

 the line of the streak, the streaks thus being lines of 

 pale greenish-yellow dots ; the horn rough and black. 

 The second moult comes when the larva is about 16 

 mm. long; the slantiug stripes become yellow, with 

 just a tinge of purple at the middle of the front edge 

 of each ; the horn rough, and purplish-red in colour. 

 The third moult is passed when the larva is about 24 

 mm. long ; the skin now feels smooth, though the dots 

 which represent the points are still seen on the sub- 

 divisions of the segments ; the face is now broadly 

 outlined with black (though some do not assume this 

 black border till the last moult), the purple edging of 

 the slanting stripes is strongly marked, the horn set 

 with points, but shining, in colour brownish-black. 

 The fourth moult comes when the larva is about 45 

 mm. long ; I should say the cast skin is always eaten. 

 The full-grown larva is over three inches, = 75 mm. 

 in length, not so stout as many Hawkmoth caterpillars, 

 cylindrical, even in bulk for much of its length, but 

 tapering forwards from the fifth segment to the head, 

 which is the smallest segment, and is notched at top, 

 with the face flat, the lobes widening below ; the horn 

 on segment 12 hard and glossy, curved downward 

 and sharp pointed ; the skin on the front segments 

 somewhat puffed, as if to allow for the curved position 

 of these segments when the larva is in repose ; the skin 

 smooth, but marked on each segment with eight 

 nearly equal folds ; the general colour bright apple 

 green; segments 2 to 4 are of a fuller tint, and 

 the belly a deeper tint again ; on each of segments 5 

 to 11 a slanting stripe, white behind and purple in 

 front, starting from the front of the segment a little 



