218 INSTRUMENTS USED IN COLLECTING, Kc. 
on which the caterpillar feeds, as larvee feed almost 
unremittingly, consuming many times their own 
weight of leaves every day. 
po) 
BRASS PLIARS. 
This instrument is indispensable in picking up 
small insects, as by using them the entomologist is 
less likely to remove the scaly powder from the 
wings. 
A DIGGER. 
This instrument is made of steel or iron, some- - 
what about six inches in length, and fixed into a 
wooden handle. It is used for collecting the pup 
of lepidopterous insects, which lie concealed at the 
roots of trees and bottoms of hedges. It is also used 
for stripping off the bark from trees, where the larvee 
of many rare insects are to be found ; it ought to be 
arrow-pointed. 
