INSECT SIFTERS AA'D 
257 
the way, when its helpless season comes, lest some 
of these creatures should return the compliment./ 
p""*' . * ' 
/ This beetle is strong and powerful, and looks like 
a dangerous enemy ; but who would think that the 
Fig. 88. 
JsM 
" ^ ^ 
m ,-i ; . . 
Sfe^^^A;S^I 
Carnivorous Beetles. Natural size. 
D, True \vater-beetle ; * g, grub of the same, showing its powerful 
pincers and strong head ; w w, whirligig beetles. f 
tiny bronze-coloured whirligig beetlesf which look so 
bright as they dance on the top of the pond, are 
also voracious insect- feeders ! Watch a group of 
these bewildering little animals carefully, and you 
will see one here and one there dart up to catch 
* Dyticns marginalis. t Gyrinidae. 
