al 
54 Dr. G. D. H. Carpenter’s Haxperiments on 
| 
Ep. | Obs. No. | Name. | Colour. Srl Remarks. 
149 ? iP +--+ 
211 ? ey] Rau 
227 ? P Lie 
263 ? iene +-+ 
264 ? P Hee 
276 ? Pe eet 
279 ? P i540 
296 ? Pp fe28 
330 ? Mah) hace 
346 ? ees oe 
351 ? Pp bee 
366 ? P — |No reason discoverable 
for this rejection. 
371 ? P oh 
377 ? Pp feat 
381 9 P Jue 
385 ? P ++ 
488 ? PP ++ 
507 ? P ++ 
523 ? PP ++ 
554 ? 12 ++ 
611 ? P ++ 
General remarks on the ACRIDIIDAE. 
The species of monkey used for these experiments eats 
great numbers of Acridiidae; I have often seen them 
hunting through long grass in the evenings, catching the 
grasshoppers which rose in front of them. 
Three, or four, species (18, 23, 186) were used as “ staple 
food,’ and many others were given to M. solely to eke 
out the less edible insects. It was not at first intended to 
list these, but I have done so; and as no particular note was 
taken of them they have not been given species numbers. 
Seeing that the Acrididae were with few exceptions 
procryptic, the more interest attaches to those that are 
not, viz. 5, 16, 22, 155, 214. 
It is noteworthy that in these five species the wings are 
absent or undeveloped, or when present are brightly 
coloured and very materially aid in the aposematic effect : 
in the case of No. 16 the insect especially displays them 
when alarmed (Obs. 160). In 1915 I saw precisely the 
same use made of the wings by the same species when 
threatened by a fowl. The fowl ran up to the grasshop- 
per, which remained apparently unconcerned until the fowl 
was close, when it raised the tegmina and wings vertically, 
spreading out the latter to show the brilliant tints. The fowl 
halted, gazed at the grasshopper, turned round and walked 
away. Another day a specimen was killed and laid on the 
ground, the coloured wings being concealed in the position 
of rest. Fowls pecked at it but obviously found it very 
tough, and though they pulled it about ate none of it. 
