Mimicry and Warning Colours in Grasshoppers. 129 
When taken in the hand, it has the habit, 
common to most grasshoppers, of pouring out an 
inky fluid from its mouth; only the discharge is 
unusually copious in this species. It has another 
habit in defending itself which is very curious. 
When captured it instantly curls its body round, as 
a wasp does to sting. The suddenness of this action 
has more than once caused me to drop an insect I 
had taken, actually thinking for the moment that I 
had taken hold of a wasp. Whether birds would 
be deceived and made to drop it or not is a ques- 
tion it would not be easy to settle; but the instinct 
certainly looks like one of a series of small adapta- 
tions, all tending to make the resemblance to a 
wasp more complete and effective. 
