TASTE IN INSECTS. 



25 



The annual poa grass, with the ringlet butterfly (Hipparchia, Hyperanthus). 

 a, upper side ; 6, under side. 



ther die of hanger than touch the leaves of the sallow, 

 and vice-versa*. We have observed a delicacy of taste 

 still more remarkable in the caterpillar of the small 

 ermine moth (Yponomeuta padella)^. By far the 

 most striking fact, however, connected with this 

 seeming fastidiousness occurs among insects which 



* Memoires, i. 319. 

 f See Insect TransformatiouSj p, 205. 



