114 



distinctly visible. On the meso- and metathorax chal. dorsalis^ 

 dial, dorsolateralis and chal. suprastigmalis are united. 



We can still recognize the primary tubercula on the abdominal 

 segments, though chal. sujvastiffnmUs has become double. The 

 arrangement in cross-rows is more striking than that in horizontal 

 ones. Distinct are e. g. on abd. segment 5 : chal. dorsalis, chal. 

 subdorsalis, a double chal. suprastigmalis (oral of it a large tubercle), 

 s. poststigmalis and s. infrastigmalis. Many s. hasales, and under 

 chal. subdorsalis a large new chalaza. 



Instar VI = Chrysalis. As J. F. van Bemmelen (1912, p. 114 

 and fig. 6) has shown, we can compare the spots of the pupa with 

 the chalazae of the caterpillars. 



This is especially clear when the stigmata are examined. I feel 

 justified in designating the spots as follows: the spot under the 

 stigma as macula infrastigtnalisj that behind it as m. poststigmalis and 

 taking this for granted, the lowest of the four spots over the stigma 

 as m. suprastigmalis. I see the proof of this in the oral and ventral 

 enlargements which this spot shows on some segments, agreeing 

 with the two chalazae, so distinctly developed in instar V. 



The uppermost of the same row seems to me to be m. dorsalis 

 and the double spot in the row caudal to the one I have just 

 discussed, I consider to be m. subdorsalis, which is also double 

 in instar V. 



From this point of view the spot under it may obviously be 

 considered as the large one under m. subdorsalis which has 

 appeared in instar V. 



The rows oral of the first-mentioned and caudal of the last- 

 mentioned one agree entirely with those of the caterpillar. 



We must still explain the spot, generally large, ventral of the 

 stigma. In my opinion this is the m. bctsalis, which has nearly 

 become irrecognisable in instar F; and ventral of it a narrow, 

 elongated spot agrees with the row of the s. pedales. 



It is more difficult to explain the two spots between m. dorsalis 

 and m. suprastigmalis. The more dorsal one of these two we may 

 take as a part of m. dorsalis, which also in the larva often bears 



