PROCEEDINGS OF THE THIRD EXTOMOLOGIC.VL MEETING 837 



row of tubercles and spots and their relative position on the sides of the 

 larva is nearly the same all through the first stage, except that the spots 

 on the second and third segments are longer and obliquely set and on 

 all other segments are behind the spiracle, as it is set on the extreme 

 anterior edge of spot. The se ond and third segments hav3 a blood 

 crimson oval mark on each end of which is set a pale transparent yellow 

 tubercle with slender yellowish spines curving mostly dorsally and 

 backward, and is very noticeable. Forward and also behind in a dorsal 

 line is a long black spot broken at the intersections ; both at the fore and 

 hinder lateral edges, other spots (the submedian row of black spots). 

 Lateral ruga (the infraspiracular line of Packard) is more yellowish and 

 not very pronounced. Abdominal legs greenish yellow. Suranal jjlate 

 same colour with a broad heartsluiped black centre and edged anteriorly 

 with black. Anal legs with small black sjiot. There is a slight varia- 

 tion in the amount of spots and markings of these larvae. 



Larvae spun up 21st April. Moulted 24th April. 



Length end of first age 7 mm. 



Second Age. The first larvae moulted 24:th April, aged eleven days. 

 Head and feet glossy black. Dorsal surface milk-white, lateral surface 

 pale-gold. The black spots along the sides are broken up and the cara- 

 pace is now only edged behind with a narrow line of black which extends 

 in a median line to the anterior edge. Dorsal tubercles of second and 

 third segments are larger and of the crimson colour of the oval raised 

 spots they spring frrm and with short carneous spines and a very short 

 white hair in the centre. The rest of the dorsal and all the subdorsal 

 tubercles have a very long white hair in the centre of .each, which is 

 wanting on the subspiracular row. Suranal plate triangular and ' nar- 

 rowly edged black. Anal legs with curved black mark. In this stage 

 the whole lai-va is covered with fine milk-blue hairs from body, longer 

 from the tubercles, except those from carapace ; last two segments and 

 subspiracular tubercles pale maize yellow. 



Comparmg it with D. japonica and D. Atmla of same age ; whilst 

 G. cachara resembles B. simla in fourth ago, but with the addition of 

 four red tubercles, D. japonica is all black and the dorsal tubercle hairs 

 of second and third segments are the longest. These in cachara are the 

 shortest and spring from large red dorsal tubarcles. The dorsal lina of 

 tubercles in japonica are relatively taller and armed with stronger spines 

 than cachara where except for the two rod pairs they are only papillate. 

 Length of larva at end of second age about 10 mm. 



Third Age. Moulted 5th May, aged 23 days. Hardly differing from 

 last excepi that the black marks are more broken and scattered, ending 

 abniptly just above the yellow lateral ruga and re-appearing faintly 



