- 
34 Dr. G. D. H. Carpenter’s Haperiments on 
(Note.—This observation is of peculiar interest. 
There is a small, grey or greenish-brown grasshopper 
which, at rest, is extremely procryptic, and difficult 
to see. Yet when it takes to flight with a clapping 
noise its red wings seem at once to give it away. I 
had previously been a good deal puzzled by this: 
the explanation seemed to lie in the rapid flight and 
sudden disappearance of the sect when it closes its 
wings confusing the observer—as it certainly always 
does me when | try to find them at the place where I 
think they must be, judging from the point where I last 
saw the red wings! (‘ Essays on Evolution,” pp. 
303-4.) Asa matter of fact they never are there, 
for the moment they have landed from their flight 
they hurriedly creep away and hide. The monkey, 
however, seemed most definitely to regard the 
red. wings as an aposeme (cp. also Obs. 113). He 
began to eat what appeared to be a procryptic insect, 
saw an aposeme, and found the insect was not so 
edible after all! It would be most interesting to 
know whether this insect, now in an_ apparently 
intermediate stage as regards edibility, is losing its 
former  edibility combined with procrypsis, or 1s 
becoming procryptic and edible from a more distaste- 
ful ancestor! 1 incline to the former alternative.) 
Obs. 273. Sp. 16.—Aecridiid, Phymateus viridipes : 
one of these was on a branch above M.’s head. He 
ran backwards and forwards looking at it, and jumping 
up in a half-playful way. I got it for him and put it 
on the ground, but he would have none of it! He 
then ate some grass. 
Obs. 282. — Sp. .: While M. was 
examining something on a bush this wasp flew out : 
a black species with blue-black wings; the tip of the 
abdomen conspicuously white. It soon settled on the 
ground, and M. went to look at it. He pawed it 
violently on the ground and then left it. 
Series Al. Obs. 283-285. Jan. 16. 
Series Am. Obs, 286-289. Jan. 16.—About 10 am. I 
took M. out hunting, but he was not at all keen; I 
found when he got back he was extremely thirsty and 
perhaps had fever. 
Obs. 286. Sp. —.—He ate two large Cyrlacanthacris 
grasshoppers. 
