270 



HALF HOURS WITH INSECTS. [Packard. 



The most wonderful cases of protective mimicry among 

 caterpillars are afforded by the geometrids or span-worms. 

 I have never seen a better example than that afforded by the 

 larva of Drepanodes varus (Fig. 208), which feeds on the 



Fig. 208. 



Fig. 209. 



Drepanodes and Larva and Pupa. 



Stick Insect. 



juniper. It would be difficult in the accompanying figure, 

 as well as in life, to tell where the caterpillar begins or the 

 juniper twig ends. The body of the larva holds itself out 

 stiff and rigid, after the manner of its tribe, with warts over 



U 



