186 



INSECT TRANSFORMATIONS, 



obvious, when we consider that the spinneret of the 

 spider is placed near its tail, while that of the cater- 

 pillar is in its mouth. The spider accordingly drops 

 head downwards*, but when it wishes to remount i 

 the line, it turns round, and raising its head, it i 

 stretches its long triple-clawed legsf up the line, 

 which it bundles up while it ascends. The cater- 

 pillar, on the other hand, having very short legs, with 

 only one smooth claw |, would make but slow pro- 

 g-ress in this manner, which it does not attempt ; but 

 trending its head downwards till it can grasp the^ 



Methods used by spiders and caterpillars for ascending their 

 threads. The caterpillars are those of the emperor-inotk 

 (^Saturnia Pavonia). 



♦ Insect. Archit., page 336. f Ibid., p, 367. 



I Ibid., p. 307, left-himd figure. 



i 



