1242 Experiments with the Antenne of Insects, [ 
sensitive as whole antenne, as they did not clean it off 
off the antenne. The pepper-sauce was, if anything, n 
tasteful than the mustard (if it might be called a 
results. 
5. On June 11th I caught one of the large black atid 
spotted beetles common in wheat fields. I gave him, wat 
but he cared not a bit. Nor did he care any more when! 
them off, and though I kept him a day after, he was as full 
at the end of that time as before. This may be taken a 
representative of most beetles. They are a very don't 
least as to their antennz. . 
6. Contrast with the last, however, the following: 
oth I caught one of those Coleoptera which so many peop 
take for butterflies on account of the way they fly. 
a triangular insect with yellow and black bands ac 
wings, It seemed to have nearly all its life concen 
its antennz, so that whenever I even pinched one of 
little, it seemed to paralyze the insect. When I cut th 
walked a few inches and then fell, as I thought, dea 
ticed that from the wounds of the head there came 
which had a very high power of reflecting light. I 
der the microscope, and was much surprised to find 
when it first came out it reflected so much light as 
to the eye, it soon changed color and ceased to reflect. 
to examine it more, I ran several pin holes through we 
then concentrated enough light on it to scorch the 
my greater surprise it began to crawl away from the 
been in a state of insensibility for at least fifteen mi 
vived rig, slowly, but was able to drag _ 
mon most of the summer. Having spli 
broom-straw, I placed in the cleft a piece of gum 
taking the wings of the butterfly between the eee 
of one hand, I presented to its antenne the se in 
and then the other. It did not notice either end of th 
long as I moved it about close to the antenn2 ; 
