1874.] 51 



shewed the larva occupying one side of the egg as pveviouHly described, 

 the extremity marked F in the cut perceptibly moving to and fro in 

 the egg. 10.20, as an opaque object, the ring-like banding of the egg 

 now showed noticeably. 11.6, the portion of the larva (G) now 

 showed its figure plainly. 1.22 p.m., the lower exti'emity now showed 

 as at II. 3.57 and -i.8, no special change. 9.55, the larva was now 

 almost constantly thrusting its smaller extremity backwards and for- 

 wards, a movement of this portion having been noticeable at intervals 

 all day. 



July 3rd, at 7.57 a.m., the head of the larva was visible in the 

 egg, also a row of spots indicating about nine of the larval segments, 

 and the tip of the caudal extremity was still moving. 8.8 a.m., the 

 head showed plainly (of a purple colour), and the outline of the seg- 

 ments was also clearly visible nearly up to the tail, with a spot of 

 transparent appearance on each segment ; the tail did not yet show 

 its form clearly. 8.30, the bristles on each of the segments of the 

 larva now showed plainly on the one side exposed to view^ 8.39 a.m., 

 I in cut. 9.23 a.m., the larva was now coming out of the egg, arching 

 up the middle of its back in its struggles, and the head and tail ap- 

 pearing forced to the extremities of the egg. At 9.2G the larva Avalked 

 out of the egg head foremost, transparent and colourless, save two 

 brown spots, which I presumed to be the eyes. 9.29, the larva now 

 appeared to be about one-third longer than the egg it had just quitted. 

 12.-10 p.m., the head of the larva had now re-assumed a purple colour, 

 and purple spots showed on the first three segments, the colour of the 

 spots being paler than the head, and getting gradually paler on the 

 other segments to the tail. 



AVhen full grown the larva is yellowish-white w ith brown jaws ; 

 but in its early stage, its appearance is as follows : — general colour 

 whitish, head transverse, triangular, broader than the 

 succeeding segments, dark shining purj)le, with depressed 

 wrinkled line down the centre and white line across 

 bending upwards, so as to form a shield-shape marking 

 pointing towards the top of the head. Segments with 

 purple spots paler than the head, the segments im- 

 mediately behind the head with two purple patches 

 reaching nearly to the middle of the back, the suc- 

 ceeding segments with one spot on each side, the 

 three preceding the tail with an additional one in the centre, and the 

 tail itself with tlie three spots confluent and purple tips to the lobes. 

 Legs purple, -laws sharply pointed and much curved, slightly over- 



