RESEMBLANCES AMONG ANIMALS, 8y 
to be rejected by young turkeys among hundreds of 
other moths on which they greedily fed. Hach bird in 
succession took hold of this moth and threw it down 
again, as if too nasty to eat. Mr. Jenner Weir also 
found that this moth was refused by the Bullfinch, 
Chaffinch, Yellow Hammer, and Red Bunting, but 
eaten after much hesitation by the Robin. We may 
therefore fairly conclude that this species would be dis- 
agreeable to many other birds, and would thus have an 
immunity from attack, which may be the cause of its - 
great abundance and of its conspicuous white colour. 
Now it is a curious thing that there is another moth, 
Diaphora mendica, which appears about the same time, 
and whose female only is white. It is about the same 
size as Spilosoma menthastri, and sufficiently resembles 
it in the dusk, and this moth is much less common. It 
seems very probable, therefore, that these species stand 
in the same relation to each other as the mimicking 
butterflies of various families do to the Heliconidee and 
Danaide. It would be very interesting to experiment 
on all white moths, to ascertain if those which are 
most common are generally rejected by birds. It may 
be anticipated that they would be so, because white 
is the most conspicuous of all colours for nocturnal in- 
sects, and had they not some other protection would 
certainly be very injurious to them. 
Lepidoptera mimicking other Insects. 
In the preceding cases we have found Lepidoptera 
imitating other species of the same order, and such 
