2$8 THE INSECT WORLD. 



of willows and other trees. It was on this caterpillar that Lyonnet 

 made his admirable anatomical researches. 



Fig. 244. Larva of Dicranura vinula. 



Another tribe of Bombydna comprises some very strange cater- 

 pillars, whose hindermost feet are changed into forked prolongations, 

 which they move about in a threatening manner. These sort of fly- 



Fig. 245. Dicranura vinula. 



traps are perhaps meant to keep at a distance those insects which 

 would lay their eggs upon the caterpillar's body. The caterpillars 



